Does he like me? Or just a good friend?

Okay so there is this guy we’re been friends for 3 years since I started high school, we’ve always had this weird relationship, we don’t talk much but when we do it’s really meaningful and not just fake shit or chit chat. So in one of our classes I used to sit next to him until he moved away once we started getting closer, I started sitting next to this other guy a lot and just talking to him. Then the other day he was saying how I always sit next to him and how were always talking and then I asked him “what do you have a problem” he covered his mouth for some odd reason and said no end of discussion. Then today he brings up this guy again, then I said “you really do have a problem don’t you” because of the way he said it, I was smiling while I said it then he just gets this massive smile on his face and chuckled. Then he replied with “look your like the nicest girl I now, your a goddess you have such a bright future.” Then he said something about marriage and stuff, idk we always stare at each other too, and he now waits to walk with me to class, But now that I’m writing this I feel it’s on a friend basses, but it just feels like something more and I think I’m falling for him. Help, should I tell him. Comment what I should do I am clueless.