Relationship help!!!!?

[Holls]

My gf and I have been dating for almost 2 years. I feel like I am truly in live with her. I can't imagine sleeping without her. But, In that time she has not gotten me a card/gift at all. I've told her I need to be told how she feels and yet have not gotten anything. On top of that, I find out that she has been getting on twitter and telling other random as well as famous women that they are beautiful. Am I crazy for being mad? I feel like it's to much for her to write me a little love note....but yet she can take the time to get online to talk to other women. Should I leave her??? Or should I forgive her and overlook it??