I think I made my crush a little jealous?

Anonymous
My crush went to the same college as me and took the same program as me but he just recently graduated but still hangs out on campus working on his work and personal projects. He used to help me with my assignments and that is how our mutual crush started but we are both really shy. I can tell his female friend is trying to push him closer to me by getting him around me more. They talk about me because I hear my name come up in their conversations, and show up in the same room as me.
So today I was in class. I was sitting beside one of my guy friends and just laughing and goofing off with him and trying to make class time enjoyable. My crush was with his female friend in the back of the classroom. My crush seemed fine for a while but when I was about to leave the room, I glanced at him. He was leaning toward his female friend (they are very close) with a disappointed look on his face. He glanced at me as I walked by him and gave me a stern look.
I think I made him jealous.
I thought I heard him say my name faintly and then his friend said "OMG, how could you say that?" but I could be wrong.
When he used to help me with my assignments, if I brought up anything about my guy friends, he would sigh and say something like "yeah, okay..." and change the subject. He never talked about other girls around me and if asked about his ex girlfriends, he will refuse to talk about them when I'm around.
Am I dealing with a jealous guy?
How can I make him feel better about me?

Updates
+1 y
I personally think he's jealous because sometimes his female friend will ask him if he is jealous. He denies it most of the time.
Updates
+1 y
But yet he goofs off with his female friend the same way I goof off with my guy friends and I don't get jealous.
I think I made my crush a little jealous?
3 Opinion