Sex is a VERY intimate thing, and even when people have a non-sexual relationship one is bound to care for the other more. Don't worry, it's perfectly normal.
yup... I would think so ... you can only be 'intimate' for so long before emotions start building
I had a FWB and we bonded. It happens when you have hot intimate sex with someone. Though we don't see each other any more we are still very close friends.
yes it is and once you cross that line there is no going back. unless you keep lying to yourself. good luck