Dude. If boy 1 has made it clear he doesn't want anything but benefits, he does NOT get to complain if you date someone else - and you definitely should, even if you're not sure you like them as much, because hey, boy 1 has made it clear there's no permanence in that arrangement and could disappear at any time, so it has no chance of growing into something else!
no subject
He is a drama king. You are not.