I'm going to break up with my longterm gf because of nagging
What does she even nag you about?
If she keeps whining, moaning and griping at me, I will break up with her.
Relationships are hard but it is good to work on them so that it can improve. It is better to talk things out rather than to just break up.
Nah, I'm going to find the sexier girls since I deserve a hot chick.
I believe it's best to try to remedy your relationship with your girlfriend. Don't you want to spend your life with her, how does she feel when you don't listen to her? Communication is key, and you may come to understand each other way more.