What Should I Do If My Ex Is Going With My Cousin
nothing, he/shes your ex, he/she can date whoever he/she wants.
Just ingnore him or stay friends just because he/she is your ex you don't have to be enimies :)
I would tell them both to get bent, and never talk to either.
nothing forget about it or try to anyways
Bid a goodbye to both of them.
just let it be and remember to stay out of there relationship it isnt yours if ur not careful you may end up burning some bridges
Try not to think about it. Eat chocolate!
talk to her kiss her and try to get back if not try to ignor it, and dont think about it
That's an unwritten rule, some people just don't get it. You should just carry on, it's awkward, eventually you could be friends. If you still care for him, that's a whole different story.