Am I being weird for this?

So. My best friend (19 M) and I (19nb) have been friends for a long time, specifically 8th grade. He's a very kind and cool person and i've been having feelings for him for a few years now (I started catching them when we were like, 16). The thing is, he's on the larger side and I love that about him. I've always had a thing for bigger people and I don't think it's just a preference, it borders on kink territory. But also, I'm sure I would love him just the same if he was slim. The fact that he's not is just something I really appreciate because I find it cute/attractive. Throughout the years I noticed quite a lot of times when he was insecure about the way he looks (god, he even talked to me about it once and I had to hold back from telling him that he looked gorgeous or something equally embarrassing). Sometimes I just straight up can't keep my eyes off him. So I was wondering, if we ever happen to get in a relationship (even though I'm not sure whether my feelings are requited) do you think he would feel uncomfortable if told him I like that specific trait of him he's so insecure about? (Or generally, would it be okay to be with him and tell him in the first place)

*TO BE CLEAR, I'M NOT INTO FEEDERISM OR ANYTHING LIKE THAT, I JUST LIKE FAT PEOPLE