What you've experienced is normal. But you always need the big brother or best friend advice to tell you to stop with the platonic relationships (well it sounds like for the most part) and move on to the ones where you've got potential for a mate, or if not, seriously, sex. We've all been through that before, and it's like some tragic European movie, that always ends in disappointment. There's nothing wrong with being friends, but when you're single and available, imho your time should be spent chasing tail. Because you cannot do that anymore once you're engaged and/or married (in good conscience). Enjoy life and do the things that make you feel good, not confused or hesitant. Good luck bro.