I recently started having a physically intimate relationship with a friend of mine. We both agreed we don't want to date each other and don't mind if the other is seeing someone else in addition. We've even tried setting each other up with other people who might actually have and interest in starting an exclusive relationship. The thing is, I'm starting to develop feelings. And I can't tell if it's some strange form of jealousy growing inside me, if it's just because I'm confusing sex with love, or is it because I'm actually starting to genuinely care? Do you have any advice for me to help me figure this out?