That’s a tricky one.
On one hand, you should know each other enough that it’s not weird if one of you likes the other and the other doesn’t. But on the other hand, if he does think it’s weird, this kind of friendship would be too much to lose.
I’d say, try and figure out if there’s a chance that he likes you. If there isn’t, I’d hold onto that for now. But if there’s a chance, go for it (and tell me how it goes.) GOOD LUCK!!