
A 35-year-old man says that after a painful divorce three years ago, he lost half of his assets because he had shared everything with his ex-wife, including the house, car, and savings. He was careful about mixing money again after that. His 29-year-old sister, who has bad credit, asked him to co-sign a mortgage for the house she is buying with her fiancé. He said no because he didn’t want to be financially tied to someone else’s relationship or risk losing money again, remembering what happened with his ex.
His sister was hurt and said he was punishing her for what someone else did. Their parents agreed and said he was being cold and selfish by not helping family. But he says that his choice isn’t based on anger; it’s based on keeping himself from making the same mistakes again. Now he’s not sure if saying no to co-signing makes him the bad guy.
AITA for refusing to co-sign my sister’s mortgage after what happened with my ex wife?

