Wow you dumb person. You got a long way in life to go before you realize that girls are POSSESSIVE of their men. She told you to stfu because your immature ass went to stay at a girls place when your gf was feeling insecure as hell. The way you should've handled the situation is by being loving towards your girl, comforting her and making her feel safe and secure in the relationship. That's how sometimes you gotta think of someone other than yourself and do things that they might not derserve, but badly need, as paradoxical that may sound.

And breaking up over this? LOL mate... I guess she gets to dodge a bullet here... Man up my dude. If you like this girl, forget your ego for a bit and make her feel secure. She'll return that 10x if she loves you too. Everyone gets unreasonable from time to time.