Of course. There's family for one thing. Most of the relationships I've had with males did not involve anything even remotely sexual. That includes my brothers, cousins, dad, uncles, neighbors, teachers, and friends. I can't speak for all of them, but I certainly hope they felt the same way!
I believe in it. I've had lots of male friends who I loved and adored very much, but I never liked them in "that" way. Same with the other end.