Re: prostitution?
meh - you wrote a lot. anyway, we are friends of BOTH of them so we know both sides of the story. I am not making something or assuming something to show the guy is masoom guy.
secondly, the girl know how to play along so even if guy used to feel like things are going wrong, she managed him “pretty well” .. 
.. .. few of us tried to tell him … but later we realized, he is not gona listen to us so we just supported him ..