Don’t go. Mom has already been betrayed by your dad. Plus it will probably be super-awkward for you to act happy, when you still haven’t had the time to process the divorce. Sorry you are having to go through this.

Just tell him you're sick and it's coming out of both ends. Then offer to come anyway.

Which parent is going to give you more money in their will?

Why is this a question in your mind? Going would be condoning your father’s betrayal. Even the marriage to your mom was doomed to end, there’s a right way and a wrong way to end a relationship. Put yourself in your mother’s shoes, how would you feel?

I wouldn’t go to either, unfortunately they’ll both be hurt if you go one or the other, don’t go to either it will suck that you hurt them both but it is totally unfair for them to put you in the position due to their own problems and such.

If it were my Dad, I’d tell him to stick it where the sun don’t shine. He’s clearly in the wrong here.

ghost your dad duhh

Sorry you have to go through this... Whether to go or not, it depens on what is your relationship wih your parents. Are you really happy that your father has heated on your mother ? (sorry if those questions seem rude/insensitive but the FML is laking some context). Anyway do you want to go to the wedding just beause he is our father and family? If he has cheated on your mother before the divorce, then he clearly does not care about what family or respect is... Good luck (if you are really seeking advice, you may want to go on reddit, r/relationship or r/amItheAsshole it could be usefull)

Don’t go that was a dick move on his part just explain that you should not have to make this choice.

He is a cheating dick, who hurt your mum. I wouldn't go, based on that alone.