I don't know if you could call my relationship "normal", but my GF and I actually have a lot of fun talking about people and characters we find attractive and are infatuated with. Why should we be ashamed of other people's hotnesses? XD We actually find it interesting to learn what each other finds attractive. 
I think you should evaluate your feelings and actions with the questions, "Who am I hurting? How am I hurting them? Am I being dishonest, am I betraying anyone's trust?" I think that's more helpful and healthier than basing yourself on the ever-shifting confines of "normality". You know what used to be normal? Feudalism, vassalage, and the idea that monarchs unaccountable to anyone on earth because of their "divinity". Very useful idea to the monarchies, haha.

I think you should evaluate your feelings and actions with the questions, "Who am I hurting? How am I hurting them? Am I being dishonest, am I betraying anyone's trust?" I think that's more helpful and healthier than basing yourself on the ever-shifting confines of "normality". You know what used to be normal? Feudalism, vassalage, and the idea that monarchs unaccountable to anyone on earth because of their "divinity". Very useful idea to the monarchies, haha.