AITA for not giving my brother his wedding fund money because he called me a “fat bitch”?

Update 2: Lot of people have asked me about the after math of the whole situation.<br><br> From the moment this has been like a huge weight off my shoulders, I don’t have to worry about my money being used on my brother and his fiancé. My parents, brother and his fiancé have been really upset with me. They have called me all sorts of nasty things. I don’t care. One of my friends who is my maid of honor has blew up my parents for all the nasty shit they have been to me. My parents have been pissed off with me.<br><br>My other brother has been neutral. He has told me that I shouldn’t have given my brother the money in the first place and that I don’t have to give him the money. He has said that he won’t agree with anyone.<br><br>My mother tried to make me feel guilty by bringing up the fact my dad suffered a heart attack. She even went as far as to say “your brothers wedding is more important”. I told her that maybe my dad wouldn’t have got a heart attack if maybe they had take the money I gave them. I also said there was a lot of work involved in it because my parents kept trying to make me feel bad about not giving the money back.<br><br>I haven’t talked to my brother since everything went down. His fiancé has been contacting me and threatening me. I told her several times to fuck off and to leave me alone. I also said the money is gone and there is nothing they can do about it. <br><br>I am now saving up my money to go to law school. I have already started the process to go to law school. I know it’s going to be hard but I am going to do it.