I totally had a similiar situation last year with this dude that I have known for freaking ever. Except no one liked him. Whenever we were in Chemistry class and were burning things we could still smell him.
There is this dude in my class.... omfg. It's horrible. I mean Goddamn. Wow.
Nobody can break it down to him, mostly because he's hot and cute
How do you handle with these kind of things without hurting their feelings ?
A friend of mine told him once but the dude laughed and was like "that's impossible"
If you don't want to risk that **** then don't tell him and just embrace DAT scent because no one else would probably do him.