The problem you have is, that if it IS over, he's going to say it's over.

And if it's NOT over, he's going to say it's over. All cheaters lie -- PERIOD.

There are things you can do that are much more affordable than a PI. Have you considered putting a keylogger on his computer?

If I'm reading you right, you WOULD have the ability to forgive and "let go" if you KNEW it was over, right?

Puppy