Does it seem like he may be burying his feelings in his new relationship?

I’m in a very strange situation. I’m a part of a big circle of friends, that I sometimes hang out with. But we get along well and goof around a lot. Anyway, this guy that is apart of our circle of friends jokes around a lot and its sometimes hard to tell when he is being serious. But as time went by, he started telling me he loves me and will do anything for me. Sometimes I get carried away and would ask him favors, which he eventually got tired of doing.

Anyway, he still tried to help me out. I would sometimes  reasure him that I would never take advantage of him. He acted smitten with me for months. But I always took it as a joke. He just kept say “I love you [my name]”. Randomly. I noticed that the more I laughed it off as a joke, the more he got quiet and serious after saying it. Then he disappeared for weeks. Then when he came back, he would stare at me a lot from a distance. While still coming  around to his old self and talk jokingly with me. There us this one girl, sorta a best friend to me, had overheard him telling me he loves me, and said “I knew it”. But I think that was shorlty before he disappeared

Anyway, I got things going on in my own personal life apart from these friends. So recently, I posted on my FB that I was in a relationship. Next thing I know, a month later to date, the girl posted that she is now in a relationship with him. And it got a lot of shocking response from our friends. But we all hit “liked” on the status.

Just a few days before their relationship status was posted, someone threw something that almost hit me, and he lost his temper and almost got in a fight. When he was asked why he got mad, he said I almost got hit.

Then a few days after that, he came around the rest of us without her, and everyone was talking about their new relationship. He said “Yes. Its official”. But he kept getting close to me for meaningless chattering and goofing around. He’s still staring at me a lot and just rambling off things I don’t understand. It’s almost like the first time when we became friends.  He just kept saying some weird hidden meaning chatter. Like “why won’t you just let me fly?”

What could he mean by that? He never explained any of the things he was saying to me.