Do you he thinks he like me?

Sound like you have a shy guy, give him little push, but don't rush.

I think he like you too, other wise why he get envy

I don't think anyone can truly answer this but this person you speak of. By asking him this you may be setting yourself up for a disappointment but if you don't than you will always be in limbo until you know. You must also take into consideration that even if he likes you, he still has reservations of jumping into a relationship with you. For what reasons I don't know? If anything I'm guessing this is a result of a past relationship. If his response given at the time he turned you down was a white lie in such that you really aren't his type but pulling the "it's too sudden" card makes for an easier less awkward exit. If you ask how is that possible because he flirts and gets jealous, it could be that he just doesn't approve of these men, more likely though he does like you but now may feel awkward since he has rejected you in the past. He may also act like this because he fears he will lose your friendship to another guy. Perhaps you would not hang out with him much anymore. Don't stand for his cold fits! Put him on the spot. Ask him why he is behaving like that. It's nonconstructive to your friendship and makes you feel uncomfortable. If he is always there for you he should be happy for you if you find something in someone that he could not allow you to find in him.