Help me, please?

I think i'm in love with my guy best friend and we almost had sex before but he keeps talking about his exes and when i ask to Skype him he always says he promised so and so that he'd Skype them(they're all girls) and it hurts me to think about how he can almost sleep with me and then go and talk about other girls. But mostly because before he's promised he'd Skype me and he blew me off for said girls...I don't know what to do anymore! Help?