Ok... so this guy at work is always paying me compliments and going out of his way to talk to me he shows obvious signs then retreats like he doesn't even remember being that way with me especially when he is around his friends. He has said his jealous of me talking to this male friend of mine that he sees me talking to at work, compliments my hair and says I'm beautiful. When I fixed his badge he froze. I don't know for sure if he likes me because of how we don't talk when around others its very quick hello. However, he is a shy man and a cancer that has just started opening up more with me about his feelings, but when I asked him if he had a pen he said no but he'll get one then his friend showed up and started talking to him so I went and carried on working and the next day he didn't mention it or barely talk to me, when I asked him if he was OK because he seemed not him self he started to tell me his problems at work but still didn't say anything regarding my number or Facebook? I'm completely confused!!! does he or doesn't he like me?
What should I do and why does he do this?