  What I'm about to type may be difficult for some people to grasp, but please bear with me, and at least try.
Now, I don't know if anyone has noticed, but it IS possible for a male and a female to be friends, and nothing more than friends. What this means is that when a male stays overnight at the flat of a close female friend, there is no reason to assume that anything is going to happen.
There is no need to react with instant suspicion. There is no need to make innuendo. And there is no need to believe everything (or indeed anything) that you hear. For those still in doubt, feel free to ask me as to the truth of rumours about me whenever you see me or speak to me. I will be more than happy to confirm or deny them. 
