Not just that but the other guy could've been more experienced or mature in some way, an old friend. We don't know her story which is important. You can be mean all you want but if you don't have a purpose behind your actions it's a waste of time. Not that I'm advocating verbal abuse or other mean things, I'm against those thingsYou know if you're really a good guy, then you're not gonna be able to stand being a heartless asshole.
Which means if you can stand being a heartless asshole, you were never really a good guy anyway.
Which means it was never being a good guy that was standing in your way to start with.
That's just logic.
An example is if somebody is rude to you and you're rude back. That won't work. People don't want to be reminded of their own behavior. I'm not saying everybody's the same psychology but hopefully you get what I'm saying here. If you don't know who she is now it's going to be hard to get to know her at this point, unfortunately. Not that you can't but all I can say is good luck