Honestly, I don't think this is bad! Of course it must be hard for you, and it can lead to awkward situations sometimes, but the human body is a magical thing! It should be observed, and it should be more appreciated! In my opinion every person in this world should look at people the same way you do!
I don't think marriage can stop this, but thats a good thing, because marriages are not supposed to change people! But falling in love might actually change the way you act, by making you focus more on your girlfriend/fiancee/wife.
I'm not a specialist, thats only my opinion!
I hope I helped you!