AITA taking away my daughter’s car for lying to my fiancée?

A father’s dream of a happy blended family hit a roadblock when his 16-year-old daughter dodged his fiancée’s shopping invites with a lie, only to be caught lunching with her aunt. Picture a suburban driveway, a shiny car parked, and a dad clutching its keys, his face a mix of fury and hurt. His 21-year-old fiancée, eager to bond, feels snubbed, while his daughter clings to her independence. This tale of white lies and family tension dives into the messy clash of loyalty, age gaps, and expectations, leaving readers wondering: can you force family harmony?

The drama unfolds against the backdrop of a whirlwind engagement, with a wedding looming. The daughter’s resistance and the father’s drastic punishment spark a debate about trust, boundaries, and what it means to build a family when ages and attitudes collide.

‘AITA taking away my daughter’s car for lying to my fiancée?’

I am 36 and have a 16 year old daughter. I have full custody of her because her mom, 40, had a mental breakdown and has been in and out of rehab.. This January, I started dating my girlfriend (21F). Then quarantine happened and that time apart made me realize that I wanted to spend my life with her. So I proposed in May and she’s moved in. Our wedding is in October.

Since then, my daughter has been a nightmare. She and my youngest sister, 25, keep calling my fiancée “ the kid.” My fiancée decides to invite my daughter out to go shopping. She kept trying to set a date but my daughter kept saying she had an extracurricular activity.

So yesterday day when my daughter once again said she was going to practice her serve, I decided to follow her car.. She ended up pulling up to a diner and I realized she was grabbing lunch with my youngest sister.I am furious. First at my sister for enabling toxic behavior and second at my daughter for lying to her stepmom.

I ended up taking her car keys away from her. Her aunt then calls and says I had no right to do so. I explained that she would not be getting her car back until she makes an attempt to bond with her stepmom.. AITA for not condoning lying? I just want my fiancée to be accepted into the family.

This family feud is a classic case of mismatched expectations in a blended family. Dr. Patricia Papernow, an expert in stepfamily dynamics, says, “Forcing relationships in stepfamilies often backfires, creating resentment instead of connection” . The father’s decision to punish his daughter for lying by taking her car keys aims to enforce bonding with his fiancée, but it overlooks her need for autonomy. The age gap—his fiancée is only five years older than his daughter—complicates things, making the “stepmom” label feel absurd to a teen already navigating her mother’s absence.

Blended families face unique challenges, with 65% reporting tension over stepparent roles . The daughter’s lie, while wrong, was a gentle way to avoid an uncomfortable situation. Her connection with her aunt, a trusted figure, is a healthy outlet, yet the father’s punishment risks isolating her further. His fiancée’s eagerness to bond is natural, but pushing a teen to accept her as a parental figure is unrealistic given their close ages.

Dr. Papernow suggests “building relationships gradually through shared interests, not ultimatums.” The father could encourage open dialogue with his daughter, asking about her feelings without judgment. Apologizing for following her and returning the car keys could rebuild trust. The fiancée might try low-pressure interactions, like watching a movie together, to ease tension. Resources like Stepfamily Foundation offer tools for navigating these dynamics. Both need to respect the daughter’s pace, fostering civility rather than forced bonding.

Check out how the community responded:

The Reddit crew didn’t hold back, serving up a spicy mix of shade and sympathy for this family drama. Here’s the unfiltered take from the online crowd:

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[Reddit User] − YTA. You’re engaged to a 21 year-old that you started dating in January.. SHE IS NO ONE’S STEPMOM AND NEVER WILL BE.. Your daughter is 16. She has a responsibility to be civil, but that is all.. Your daughter is not obligated to bond with this woman. It’s a GOOD thing that she has other women in your family that she feels comfortable reaching out to. Destroying her support system is an awful thing to do.

UnsightlyFuzz − YTA. How did you THINK your kid was going to react when you got engaged to someone closer to her age than yours? 'Until she makes an attempt to bond with her stepmom' - you're kidding, right? You can't force any two people to bond. You're actually making it less likely. YTA YTA YTA

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jeffsang − YTA every step of the way. Let's break this down:. I am 36 and have a 16 year old daughter.....This January, I started dating my girlfriend (21F). Okaaaay, so your dating a girl that's only a couple years older than your daughter. Kinda weird. Then quarantine happened and that time apart made me realize that I wanted to spend my life with her. So I proposed in May and she’s moved in.

So proposed after 5 months of dating, much of which you've been 'apart' and moved her into your home with your daughter? Has your daughter met this person? I take it she didn't have a say in her moving in? Since then, my daughter has been a nightmare. She and my youngest sister, 25, keep calling my fiancée “ the kid.”. Understandable that your daughter has considerable resentment about this situation. I'd probably refer to her as 'the kid' too.

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So yesterday day when my daughter once again said she was going to practice her serve, I decided to follow her car. She ended up pulling up to a diner and I realized she was grabbing lunch with my youngest sister. So seems like your daughter has no interest in bonding with your fiancée but doesn't want to create drama so she blew her off?

Have you never used a white lie to avoid having to spend time with someone? Would you have preferred that she was honest and told your fiancée that she wasn't interested in spending time with her? Would that have been better? You followed her car, wtf?. I am furious....my daughter for lying to her stepmom.

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She's not her 'stepmom.' First, she's not your wife, she's your fiancée. Second, 'stepmom' assumes that your fiancée is some type of parental figure to your daughter, which with only a 5 year age gap is NEVER going to be the case. I explained that she would not be getting her car back until she makes an attempt to bond with her stepmom. AITA for not condoning lying? I just want my fiancée to be accepted into the family.

This isn't about 'condoning lying.' If it was, then an apology for lying and her being honest about not wanting to bond with your fiancée friend would be sufficient. This is about you wanting to force your daughter to accept your fiancée, and punishing her if she doesn't.

You can't force that and your approach isn't helping. You forced this whole weird situation on your daughter and it's not going how you hoped. Talk to your daughter about her concerns. You probably need to take a step back with your fiancée.

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moongirl12 − YTA. She doesn’t want to go shopping with your “wife”. That’s her right.. Also, don’t expect a 16 year old to view someone younger than her aunt as a mother figure.

[Reddit User] − YTA what the hell? You're forcing your daughter to 'respect' someone only FIVE years older than her as a mother figure. Are you serious right now? You're 36 and your ex-wife is 40, which is a 4 year age difference. That difference is almost the same as the one between your fiancee and daughter. Obviously she is not going to consider her a stepmother. Jeez.

winter-soldier − YTA. Your fiancé IS a child, and trying to lock her down after only a few months of dating makes me very concerned about your judgment and suitability as a partner. Your daughter is essentially her peer.

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You can't try to force your daughter to be your new girlfriend's best friend. It is deeply worrying that you not only FOLLOWED her, but you're now trying to keep your daughter isolated from her other family members until she gets on board with this screwed up situation.

cautiousoptimzm − YTA - for dating and moving a girl into your house that’s nearer your daughters age than yours. You cannot force them to bond. You. Can. Not. Force. Them. To. Bond.

emmmmme_in_wien − YTA this woman (she’s not technically a kid) is only 5 years older than your daughter. That’s skeevy to most people, but especially to teenagers. This woman will never be her mother; they’re close enough in age that they could’ve gone to the same elementary school.

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The aunt sounds like a good person in your daughter’s life; someone she can trust and can turn to when she needs guidance or someone to listen. You’re a terrible parent for discouraging that relationship. Punish her for lying about going to work on her serve,

but don’t force her to “bond” with your girlfriend; it’s not going to end well, and will create more tension and problems for everyone. If she doesn’t want to go shopping, don’t make her go shopping. She’s not a little kid you can control anymore.

sunflowersandyou − YTA That lie was honestly the polite thing to do. You would have been absolutely livid had your daughter told your fiancée “no” to going out shopping with her you also would have been mad if you’d found out she was out with your sister— which again is really no big deal.

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And your daughter knew that. So she instead just politely said again she had to go practice her sport, and your fiancée never really got the hint. You’re essentially angry that your daughter doesn’t like your fiancée. Which isn’t fair, your daughter doesn’t have to like her. It sounds like she’s got a lot going on.

She’s 16, her parents are divorced, mom is in and out of rehab, and now there’s this woman marrying her father who’s like 4-5 years older than her, and her father keeps calling that woman her “step mom”. That’s super bizarre. I’d want to get away from both of you too. Give her her car back so that she can at least go see the one family member that she feels like understands her.

TheLavenderAuthor − YTA. You're fiancée IS a child. She's younger than your younger sister and only slightly older than your own daughter. Why are you dating someone so close to your daughter's age? It's creepy and obviously your sister and your daughter are uncomfortable with it.

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These Redditors roasted the father’s choices, rallying behind the daughter’s right to resist a near-peer “stepmom.” Some called his actions creepy, others urged him to listen to his teen. But do these fiery takes capture the whole story, or are they just fanning the flames?

This story lays bare the tricky dance of blending families, where age gaps and rushed relationships can sour good intentions. The father’s heart may be in the right place, but his heavy-handed approach risks pushing his daughter away. Respecting her boundaries while fostering civility could pave the way for harmony. Readers, have you navigated a tricky stepfamily dynamic? How do you balance new relationships with a teen’s need for space? Share your thoughts below—what would you do in this father’s shoes?

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