Can I break up with my girlfriend after finding out she slept with guys in every european city she visited on her euro trip? She previously told me she only slept with 3 guys in her life.
That is pretty messed up and I guess that is why you want to break up with her?
Yes, I don't need this relationship anymore.
The solution is fairly simple. Time to break up since she cheated on you with so many people. It's justifiable to dump her and also you might want to get checked out because she might have passed STDs to you.
I don't know, we will see how this plays out maybe she is sorry.
It is up to you but if you don't want to be with somebody who cheated, you don't have to force yourself. You need to do what is best for you.