AITA for not wanting to be involved with my son’s girlfriend or her children?

In a quiet suburban home, the air grows tense as a parent wrestles with a familiar dilemma: their son’s choice to rekindle a rocky relationship. The scent of fresh coffee lingers, but the mood is anything but warm. Two years ago, this parent opened their home to their son’s girlfriend and her children, only to face financial strain, endless babysitting, and a lack of gratitude. Now, with the couple reuniting, the parent stands firm, refusing to dive back into the chaos.

The decision sparks heated debates about family, boundaries, and loyalty. How far should a grandparent go to support their son’s blended family, especially when past efforts went unappreciated? The parent’s heart aches for their grandson but dreads the baggage that comes with him. Readers are left wondering: is setting boundaries selfish, or a necessary act of self-preservation?

‘AITA for not wanting to be involved with my son’s girlfriend or her children?’

My son (mid 30’s) is moving in for the second time with his previous gf. They had a baby together previously who is now a pre-schooler. She also has a teenage son and a toddler (became pregnant while they lived together) by another man.

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We lived in a house I paid for (she screwed me on the rent/expenses every month), stuck me with babysitting both my grandson and her son (sometimes for days while she was running around) didn’t cook, clean, do laundry or pay much attention to the children. I stuck it out till the lease was up and then bought a home for myself.

Son moved also as this was the time her new pregnancy was revealed. Her son was treated as much like family as possible. Flew him to our other home for vacations, Christmas and birthday celebrations, school clothes, activities, etc. He or his mother showed no gratitude for any of this, his behavior to us and our other grandchildren was uncomfortable.

Lots of teasing, bullying to our grandkids. We made excuses that he needed help because his mom was such a bad parent. To be honest, we were all quite relieved by their breakup because we disliked the gf and were tired of trying to make it work with her son. Forward 2 years later and I find that our son and her are moving in together again.

We told our son that we don’t want back on that merry go round again and only want contact with our grandson. Our son tried to drop her son off last weekend with his son and I advised him that was not acceptable. Son says they are a package deal and I need to take her son back as a family member. AITA?

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Navigating blended families can feel like walking a tightrope. The parent’s refusal to re-engage with their son’s girlfriend and her children stems from a clear history of overextension and unreciprocated effort. The girlfriend’s past behavior—shirking responsibilities and leaving the parent to handle childcare—created a dynamic of exploitation. Meanwhile, the son’s insistence on a “package deal” overlooks his parents’ boundaries, placing them in an unfair position.

This situation reflects broader challenges in blended families, where roles and expectations often clash. According to a 2020 study by the American Psychological Association, 60% of blended families face tension due to unclear boundaries (source). The parent’s experience highlights the importance of mutual respect in such dynamics.

Dr. John Gottman, a renowned relationship expert, notes, “Boundaries are not walls; they’re agreements that honor everyone’s needs” (source). Here, the parent’s boundary protects their well-being, but the son’s pushback risks alienating them. Gottman’s perspective suggests open communication could bridge this gap, with the parent clearly stating their limits while expressing love for their grandson.

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To move forward, the parent could offer limited support, like quality time with their grandson, while firmly declining broader responsibilities. Setting clear expectations with the son—perhaps through a calm, honest conversation—could reduce tension. Both sides must acknowledge past mistakes to rebuild trust, ensuring boundaries are respected without fracturing family ties.

Check out how the community responded:

The Reddit community didn’t hold back, dishing out candid takes with a side of humor. Here’s what they had to say about this tangled family saga:

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[Reddit User] − NTA This seems very messy. And it’s good that you set up boundaries against your son’s GF because she seems like an unfit parent.. Unfortunately you’ll have to risk losing your son for a period of time

ElectronicRub1716 − NTA. It was a disaster last time; why would it be any different this time?

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yoongisrealwife − nta i disagree with the whole 'grandparents should be unpaid nannies' thing even for bio children. if the kid cant behave, your son should parent him till he does. funny how he sees the kid as 'family' to leave him with you but not for taking resposibility in educating him

Randomz1918 − NTA, but it sort of sounds like everyone else is. You're not even responsible to look after your own grandson, that's the job of the parents. It doesn't seem like they appreciate the help they are getting and are intent taking advantage of your 'unconditional love and support'.

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Help out with whatever you are comfortable with but don't feel bad that you can't help out more with your son's GF and her own kids. You're not responsible for someone else's poor decisions and you can't be mom and grandma to everyone poor soul out there.

maxpersa − NTA a package deal for him not you. He doesn't want to be a father to that kid and will kick him to you plus with all that mess and 2 years later he back with her again am sorry but no don't redo that mess again

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an0nym0uswr1ter − NTA. Your son may want to ride the merry-go-round but that doesn't mean that you have to.

TheLovelyRose02 − NTA. You opened your home and wasn’t shown any gratitude or respect. You don’t NEED to do anything.

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lonnielee3 − NTA for establishing boundaries but imho you are not putting too much blame on the girlfriend and not enough on your son. You were generous to the gf and her children…but why the heck wasn’t your son paying her expenses while they were living together in your house?

If your son loves this woman and the children in spite of all she’s done, you might want to find a way to tolerate and be kind. Doesn’t mean you have to babysit or fly them all over or fund the lifestyle of any of them, including your son. There’s a similar situation in my family and it sucks. ;(

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Difficult_Rooster796 − NTA, you are not a free babysitting service, also he is all cool with her getting pregnant by another man while they were together? This situation is all kinds of fucked up. The kids are not at fault of who their mom was and what she did, but still you should not expect to watch over the kids.

Wodan11 − NTA Son however can put whatever requirements on visitation he wants. Unfortunately it's take it or leave it, that's the decision point you have.

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These fiery opinions light up the thread, but do they cut through the mess or just add fuel to the fire?

This story leaves us pondering the delicate balance between family loyalty and personal boundaries. The parent’s stand is a bold move to reclaim their peace, but it risks straining their bond with their son. What would you do if caught in this tug-of-war between love and self-preservation? Share your thoughts—have you ever had to set tough boundaries with family?

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