My boyfriend has been found out being unfaithful before now (sexting not physical(that I know of)), since then I can't get it out of my mind, I know he's talking to other girls as I have seen the messages (nothing incriminating this time) but the messages have since been deleted. I don't know if I'm just paranoid or this is actual something that should be bothering me.
I have been unbelievably tempted to message these girls myself but is this a step too far?
Some advice would be lovely.