Need opinions on girl issue

I have this girl that I used to date a while back. It lasted about a year and we had great times together. The only problem thoughout was that she could not express any of her thoughts or emotions in words. This often times left me wondering what the **** was going on. I always felt as if I couldn't trust her because I didn't know what was going on in her head. Not that she did anything wrong, I just didn't know. Eventually I couldn't take it anymore, so I ended it. Now were cool and we talk here and there. We also hook up here and there. Nothing near serious but on occasion it happens. It probably would more but she is real flakey. So much so it almost has gotten to the point that it really isn't worth the time to talk to her. At times she'll text me, I'll respond, and then she just won't write anything back. It's real stupid actually. Well, as some of you know I recently had surgery. Just after I had the surgery and was recovering she wrote me saying she hoped I was good and if I needed anything to let here know. I said I was doing okay but she should come by and watch a movie with me (That's all I did for a week straight) Well she never responded. I don't know why she even bothered. Well I talked to a friend of mine last night and apparently she tried to go out to dinner with him. He said no, so it ended there.

I need some reassurance in my drunkeness. I should never talk to here again right? The broad even texted me today asking how I was doing. I can't believe how people can act like they give a **** when they're really trying to screw you. Needless to say I never wrote back. Tell me what you guys think.
- Justin

Thanks for the input guys. I figured it was the right decision. I am quick to cut people that screw me out of my life. Sometimes to quick. That's why I wanted a second opinion.