Is it normal to still be in love with your ex?

I'm still in love with my ex. I'm going to be a bit personal..he took my virginity. I'd do anything to be with him agian even though he's some what of a loser. He's gotten into a lot of trouble over the years but I think that's why I like him..he's everything I wish I was. So..even though every fiber of my being tells me no..and so do all my friends and family...is it normal to crave the relationship I once had with him?