I'm sorry but I consider God more of an authority than yourself. God said sex is his gift to a married couple. For those who choose to abuse this gift there is std's. Before the fall of man there was no sin (or degeneration.) Animals didn't kill each other for food, there were no thorn bushes, and most likely no std's. This was something the bible says came about after man's sin. If you consider the fact that two people who withdraw from sexual attivity until marriage and then are faithful to one another it becomes apparent that my theory is true. As for a husband who gets aids from a cheating wife, maybe God is paying him back for some other sin he commited earlier. I believe it is intirely possible that we are not always punished emmidiatly after we sin. But that being said still I must erge you to understand this basic fundamentalist christian understanding that we are all sinners!! Even when we are born. The sin that Adam commited is carried down through all his generations. Therefor no one is innocent.
God did not create evil. Even though God has control over everything, God did not make lucifer's rebellion against him. It does not seem logical but that's because we can't understand it. God actions are not limited to our comprehension. A contradiction to us is comprehension to him.