Personally, I don't see the therapeutic benefit of turning one's childhood inside and out. I am more of a mindset to deal with the behaviors that are problematic NOW, and problem solve them. Your wife is triggering insecurity in you, and that's only natural because she seeks sexual flattery and attention from single men. To me, that doesn't have to do with childhood -- it's a natural reaction nearly almost anyone would have to this situation.

And the communication issues in your relationship are very real and problematic, and mainly on your wife's end of things. How is the therapist going to help you to problem solve those? By exploring your childhood?

But what do I know? I am not a therapist, though I almost became one and went to school for it.