So, I've got a friend, we knew each other for almost 6 years, even if we've only talked through facebook, because it's a sort of long distance friendship. He's really nice to me, even if he's quite shy when we see each other. During these past few days I can't stop thinking about him and I always want to talk to him. I also noticed some things on him that I've never noticed before. I'm really confused because it seems like I got jealous when he and my cousin went out. I felt something weird and it kinda hurt me. I don't understand if I'm having a crush on him or if I'm falling in love. How can I tell that?