Hi Overrnbw, you have every right to feel that way. You've been dealing with this behavior for months now. It seems like you've kept your composure as much as you possibly could but we all have our breaking points. I think it's good you checked the car app's history to find out where your wife went. It gave you the truth, which is something you need right now to make the right decision. I agree with Gordie's advice and I really do know how hard it is to execute that strategy (cut-off contact) because you're a fair man who loves his wife and wants to give her another chance, but it sounds like involving yourself in this three-way relationship isn't healthy for you and isn't propelling your wife towards ending it with OM. I do believe your wife will figure this out eventually and choose you, because you're her real husband and her home is with you, but she's just not there yet.
If you decided to do any of those extreme actions that you wrote about, like contacting OM, filing for divorce, etc.. then I don't blame you. You don't want to play the role of the fool. If you do something bold and stand up for yourself, even if it's not in line with DB, I still don't blame you because we're all human and we all lose it sometimes. I'm guessing you didn't do any of those things but it's tempting. When my husband first had an affair I wanted to throw his computer out the window and I really thought about doing it. I didn't, but that's how mad I was. I hope you can quickly make some decisions that you feel bring justice to yourself and no longer let your wife take advantage of you.