What do I do now? This guy I dated in november had an ex who cheated on him and became prego. I decided I?

would date him because I was supporting him because I liked him. We dated seriously and almost became a couple (his choice) and then one day out of the blue he said he just wants to be friends and has alot on his plate right now. I couldn't understand it. He even invited me to go skiing with me after christmas and now this? I went on dates with other guys and he was always in the back of my head, so I waited until she had the baby and then contacted him. We bagan hangin out and talkin everyday. I would see him a few nights a week. The child turned out to be his. I told him before the results came back I would support him if it was his or not. He saw the baby for a few hours on Sunday and the mother is in a relationship with someoneelse and is a comeplete ***** to him. Things were fine up until this week. Lke I said, we would talk everyday and occasionally hang out and hook up. This week he has been short on the phone 5-10 min calls and won't answer my texts. Today I called and left a nice voicemail just sayin hey, hope ur day is well, we haven't talked in ahwile, gimmie a call when u get a chance....no call back. By now I know he is in bed. I just don't know what I did wrong or if he just needs space because all the legal child support stuff or what? I don't know what to do...what do u think of the situation and what should I do? Please help!