My girlfriend and I have been together about 11 months now. Everything has been really perfect lately and we've been really happy. We're the type of couple that is constantly texting and stuff. I'm not the suspicious type, well last night I didn't hear from her for hours (which is very abnormal for us). So I'm getting pissed that I'm not hearing from her and didn't have a suspicion as to why
So I look at her twitter page to see if she's blowing that up and neglectin me. Well I find the two latest tweets about a date night and a picture of her "date hair" that she did up.
Finally she texts me like everything is normal and I confront her and she tells me she was fighting with her mom. I then bring up her twitter and she continues to deny it until finally admitting up to it. But then continues to deny it was a date and that the picture was old even though it was the same outfit she wore when she saw me that day. So on top of this she doesn't even apologize for it until I point that out and doesn't really do anything to correct it. Things are pretty much dead and over because she doesn't really seem to care at all about what her actions have done to my trust in her. So my question is should I even bother trying to save this relationship or should I just move on? I do love her and outside of this everything has been perfect.

Sounds like she went on a date with someone else, so that means you are not as exclusive as you though, I see issues on having to be in contact all the time, perhaps that was someof the issues

Let the emotional dust settle, and let calmer cooler heads talk about it because for sure when a routine changes its disconcerting, but YOU may have been over reacting also. Think when you are not so "hurt".

Jumping to conclusions, or over reacting is as bad as lying. Being selfish and needy is worse.