Why do Muslims hate ity when the Quran promises them boys as objects in Paradise?

I had always wondered about issues such as that. I do not know the Koran, but it seems that in all religions have contradictions. The fallible man makes their own meaning on such things so they can enjoy without sin. Even western religions preaches against without marriage. Were Adam and Eve married? Yet in the bible it says "Go ye forth and multiply". It didn't say anything about marriage. Procreation is the most primary drive in man, yet it is one of the man's most feared gift from the Almighty. .