Age and virginity

So I'm 15 and I'm a vigin I guess you could say I'm very mature for my age as I have been a mom to 2 kids (little siblings not my children) and taken care of my whole family...so I know this guy and I have strong feelings for him and he's 18 almost 19. He is in college and well before he left we were going to loose our virginity together but that didn't happen and come to find out he has no feelings for me and just wants to be fuck buddies idk what to do cause he's made it clear After we do there is nothing between us. And I'm super self conscious cause I'm plus size and he's lean. I really have no clue what to do sincerely a 15 yr old