It depends if there is other guys going then you should ask her why your not invited but if there is no guys going maybe she is just having a girls night
No that is bullshift, if the girl wants to break up then she is stupid.
Why are you dating my girlfriend?
Break up with her!
Of course
Of course you would!!!!!!!!!!!!!!!!!!
If a boy has a girlfriend then he is considered taking and you should leave him alone and later he may break up with his girlfriend.
Dump her! Ya.
Break up.
If you're fighting with your girlfriend and you're not totally broken up you should never date anyone else as it's considered cheating; if you don't like your girlfriend anymore break up with her for good and then you could date other girls, but I recommend you don't if you're on a break (head space) with your girlfriend.
The feelings you have for your girlfriend should be strong. If you don't have these feelings you need to break up. There is someone for everyone.
You should be as nice to the girlfriend as he is. If he's really into her respect it, but if he treats her poorly they should break up anyway.
Yes you should and ask her why she wants to break up.