DARK - how do you do it right? I need help BADLY

[DTM]

So here's my big question:

I'm too nice of a guy and I love my W even with all this BS.

Do I confront her in a sincere, unthreatening way with what I've found and discuss some options

OR

Go with giving her a bomb drop of my own with some legal paperwork.

She'll probably be scared to death that I found everything and copied it and will realize that with NC alienation of affection law both her and her girl are going to lose a legal suit........but she might just play me again like she did when she told me she broke it off the first time and then I'll end up in the same place.
Legal action is probably the best choice to protect myself and my kids.