Recently, the ex-wife began a relationship, became pregnant, and moved her new boyfriend (who has a daughter) into the home. This arrangement resulted in the OP’s son and his cousin sharing a room, which prompted the son to request living with the OP full-time. The OP then initiated legal proceedings to seek full custody, which he had previously considered but not pursued.

Hello, I (41M) have a twelve year old son with an ex (37F) with my ex wife. We divorced 5 years ago. I pay child support and (formerly) alimony. Shortly after our divorce, she took in her sister’s son, who is currently ten.
They live in our old home, which has three bedrooms.
Almost 2 years ago, my ex started dating a guy and is now 4ish months pregnant. He moved in about the same time she found out she was pregnant. He has a daughter from a previous relationship.
His daughter was given her own room and my son and his cousin now share a room.
My son is upset about this and asked to live with me full time. I went to my lawyer and began that process to get full custody. I have wanted full custody since we divorced, but my son had never indicated he wanted that so I did not push for it.
I also found out from my lawyer that my ex living with her boyfriend gives me the right to terminate alimony in our state (my previous lawyer said it was only if she got remarried).
So, I told him to go for it.
The court has ended the alimony. The custody is taking longer and won’t be decided until after the holidays. My ex is pissed about the loss of alimony it because she is only working part time and her boyfriend is a medically retired fireman.
So, they are struggling financially. But, I feel that is extra money I could put away for my kid down the line.
AITA?
Conclusion
The Original Poster (OP) is facing a conflict where his desire to secure full custody for his son, driven by the son’s unhappiness with the living situation, clashes with the financial distress experienced by his ex-wife following the termination of alimony payments.
The core question is whether the OP was justified in seeking full custody and terminating alimony based on the change in his ex-wife’s living situation, or if his actions were unfair given the resulting financial hardship on his ex-partner and her new family unit?
Here’s how people reacted:
This woman got your marital home, alimony and child support. Then she took in her nephew. Then she took in her boyfriend and his child and made YOUR SON, the only child you should have been paying for, share a bedroom.
On what planet is it reasonable for her to expect you to pay for her, her nephew, her boyfriend, his child and their upcoming baby?
She has had a good run. You have paid for her and her nephew for 5 years. You paid for her boyfriend and his kid for 4 months that you know of.
Being medically retired from the fire service means that he has a good pension. It also means that he can’t work for the fire service anymore, it doesn’t mean that he can’t work elsewhere.
In my opinion alimony is a transitional type of payment to adjust to being single and the loss of a former spouses support and income. Obviously she’s adjusted to it by finding another partner and getting pregnant by them.
While it is the best move to allow the girl to have a bedroom of her own, it is not fair to do so at the expense of her own child and further disrupt his life by bringing in an additional child (the nephew) and getting pregnant. Your son should not have to grin and bear all these changes and I don’t blame him for wanting out.
There is a big difference between child support and alimony (spousal support). The alimony is to help keep your spouse in the lifestyle they were used to, but is typically not forever. Now that she’s with a new guy, it shouldn’t be your responsibility to pay for her lifestyle any longer. It’s not your problem that he doesn’t/can’t work.
Best wishes for success in the custody changes!
You should ask your lawyer if you are entitled to back pay for the alimony you paid that you should not have after the BF moved in. If so, tell your ex that if she fights the loss of alimony, you will push for getting paid back the money you should not have paid.
Your ex’s financial problems are not your problem.
It is not your responsibility to support your ex and her sisters kid and her unemployed boyfriend and his kids
You are ONLY responsible for your son.
They shouldn’t have gotten pregnant if they’re struggling financially.
She’s an asshole for even thinking about being mad.
Alimony should not be a thing anyway.
If you are able to get full custody, SHE should be paying child support to YOU.
You’re doing the right thing.
I hope your son ends up in the best possible living situation.