Found out Wife has been Unfaithful

I'm 36M born in the US and she is 32F born in the middle east. We've been married for 15 years and i have just recently discovered that she has been cheating on me for the past 4-5 years. I trusted her 100% and never suspected anything. I respected her privacy and never looked through her phone even though she would constantly accuse me of cheating and go through my phone religiously. I was never the best husband I admit, I was working overnights and our intimacy dwindled and that is supposedly when she started seeking compassion outside of the marriage. I can go on and on about everything that happened and what led to it but I don't want to rant. Just looking for advice on what I should do.