No, it happens. I've been there. They aren't ready and would likely end up hurting & fooling you if they forced themselves to be in something they weren't ready for. I did this to someone. I tried, but I wasn't ready for the love he wanted to give me. Yes, it had to do with some drama I experienced. I broke up with him on Valentine's Day. I took myself out of the dating game for awhile and didn't return until I was ready.
Java, if they are running away, its a good thing. They aren't ready to give themselves to you, to love you, and to be completely raw & honest.