Girl - I have the same issue. I have always been really choosy with who I share my body with because that in itself has always felt intimate to me. It has bothered me that my boyfriend chose to share his with so many more people... and he says the same thing - sex and intimacy are separate things. One thing that helped put it in perspective for me is when we did the meyers briggs personality test and it showed that I am highly emotional and put a lot of emphasis on connection and he is nearly my opposite. So I feel like our viewpoints on sex are just ingrained in us due to personality differences. The only other thing I'd say is stay in the present and look toward the future with him. Don't look back or try to analyze what he did or why.