He Thought They Were Co-Parenting, Until His Ex Asked Him to Co-Sign a Loan for Her and the Man She Stole

We all know that moment when a simple request feels like a hidden trap. For one single dad, a sudden plea for financial help from his ex turned into a masterclass in sheer audacity. He had spent years trying to maintain a stable environment for their son while navigating a wildly tangled web of past relationships, betrayals, and overlapping living situations.

But when his ex and her current partner hit a wall, they looked to the only person left with a solid credit score: him. As the pressure mounts, he is forced to weigh the financial risk against the desperate hope that she might finally step up as a mother. Want the juicy details? Dive into the original story below!

He Thought They Were Co-Parenting, Until His Ex Asked Him to Co-Sign a Loan for Her and the Man She Stole

AITAH if I don’t help my son’s mother move out.??

The past is rarely just the past, especially when unresolved feelings start pulling new people into an already volatile orbit.

My son's (9 y/o) mother (27 f) and I (28 m) have been separated for 7+ years. And she's asking me to help with a loan because I have good...

Her first daughter (we'll call her Caroline) is about 6 y/o and is old enough to come visit with my son and me, and go places with us out of...

A little bit of background: his mother cheated on me about two years after our son was born. (We both made some mistakes, and I'm able to take into account...

She came home three days after a night out, and we didn't talk those days either. Eventually, she came back home and we talked. She told me what had happened....

Just when the dust seemed to settle, the revolving door of relationships kicked into high gear, tangling everyone’s lives together.

Laney and I dated for a few months. Everything was very hot and heavy, but I still had residual feelings for the mother of my child.

There was a little bit of overlap between Laney and my son's mother while I was dating Laney and trying to (stupidly) get back my ex and "save" our family,...

Eventually, I told Laney that I still had feelings for my son's mother, and I had to break it off with her because it didn't feel fair. His mother and...

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She went back to him. Shortly after that, she announced that she was pregnant with his child (Caroline). They soon separated after about a year or two, and she met...

In between then, she went to live with Laney and her now boyfriend (we'll call him Eric). They had their own ménage à trois thing going on for a little...

My son's mother went back to live with Randy; they "settled" things, moved back in with each other, and got a house. Eric and Laney eventually had another child (a...

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I'm not super clear on what happened between then and now, but what I do know is my son's mother ended up leaving WITH Eric and moved back into Randy's...

Eric and my son's mother have their own child on the way now and are trying to move out of Randy's house, whom he's living in with his girlfriend and...

They're now asking me (since I'm the only one with good credit apparently) to help them get a loan to move out of Randy's place so they can get out...

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I guess it would be good to mention that my son's mother, from the time we separated all the way through now, has never helped or supported getting my son...

And now she's asking me to help them with co-signing on a loan so that she can move out and finally do that. (She has said this multiple times with...

) So, AITAH if I don't let them put me down as a cosigner and risk my credit to move out, even if there's a possibility it would put them...

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Updates

EDIT: I'm BD #1 and I have our son as the primary. He lives and stays with me because it's always something with his mom.

When personal history is this entangled, the most practical step is to erect a massive financial firewall. In situations involving complex past relationships and unreliable co-parents, mixing finances is a recipe for long-term disaster. Establishing firm boundaries is crucial for a healthy dynamic, and parents should treat financial discussions like a business transaction to avoid unnecessary emotional load.

Co-signing a loan is the exact opposite of a boundary; it legally binds you to the debt if the primary borrower defaults, risking your own credit score and future stability. The author needs to prioritize his own household. By refusing the loan, he protects his ability to provide for his son. The most effective actionable step here is to formalize a custody agreement and firmly decline any further financial entanglements, ensuring his son has at least one entirely stable, debt-free home.

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Navigating the chaotic aftermath of a broken relationship is never easy, especially when children and finances are deeply intertwined. Setting strict boundaries can feel harsh in the moment, but it often serves as the only way to protect a stable home environment. Do you think he should protect his credit at all costs, or should he take the risk to potentially improve his son’s situation? And where do you draw the line with an ex? Share your thoughts below!

Community Opinions

Reddit came in hot — nearly unanimous in their horror, with everyone urging OP to protect his credit score at all costs.

u/Kukka63
This is a ridiculous mess and you co-signing will not result in anything positive, do NOT even consider it.

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u/Big-Tomatillo-5648 What in the Jeremy Kyle is going on here? In all seriousness though, be a good father to your son, help him whenever you can and be a good...

u/Dazzling_Tap886 NTA .Never, Never, Never cosign a loan. Especially in a situation like this. You owe nothing but court ordered child support to her. Best you could do for your...

u/purte You need to do some serious editing on your post, you’ve pasted in the same part twice. Interesting that almost everyone gets a fake name except your son’s mother....

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u/Dismal-Remote-3906 Good grief. ABSOLUTELY NOT. You already know her word does not mean anything as it never has. Past behavior is a good indicator of future behavior. Never cosign for...

u/eilyketoo
Wow oh wow oh wow. Wha have I just read. This is chaos

u/Realistic_Mail_2080 I’m proud of myself to be able to follow this and get all the linkages of all the characters involved. But wow, and y’all are under 30. Stay clear...

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u/User_User_Ice6642 I was ready do say of course! But NEVER CO-SIGN a LOAN unless you are in a financial position to be able to pay it back in its entirety....

u/Boomer79NZ I'm sorry, I couldn't even finish that. NTA. Don't lend money to this woman. Don't ever lend money you can't afford to lose. Just don't. This is so messy....

u/christine-bitg Do not under any circumstances loan money to this person. If you do, you will never see it again. There's a reason she has bad credit. That reason is...

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u/Head_Photograph9572
NTA. Don't misunderstand, you're a bone head that chose poorly for ur baby momma. But that's irrelevant, you have to do what's best for your son.

u/Fragrant-Reserve4832 If she is not capable of giving your son care then go for full custody Do not gibe this woman another way to screw you over, because you will...

u/No-Camel-1307 Do you own your own house? If you do, you could lose it! If you don’t, you need to build up equity and credit to get a mortgage and...

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u/keepercoach69
Hell no, the lady us an absolute mess and will ruin your credit in record time!

And a few reminded everyone that OP's main priority should be securing full custody, not funding his ex's living arrangements.

The chaotic web of past relationships makes this financial request incredibly risky, leaving many readers stunned by the audacity. It is clear that protecting one’s own financial stability is paramount when dealing with unpredictable co-parents. Do you think OP should prioritize his financial safety, or did the possibility of his ex finally helping out make the risk tempting? And how would you handle a co-parent making such a massive request? Drop your thoughts in the comments.

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