3 months since I found out about my H's OW, 2 months since I looked her up and saw the most beautifully stunning woman, cultured, well travelled and intelligent. It was the worst night of my life - and I have had a few of them to challenge that believe me.
It was my lowest, I was utterly desperate.
I didn't believe it when MNers said it would get better, but slowly, but it does. What you have done is perfectly natural, I did it twice but won't ever again. Why torture ourselves? It only hurts you and you're hurting enough already.
Once you realise that no matter how perfect and pretty and young she is and realise that she must be very ugly inside, you will get better and stop focussing on her. If it was an awards ceremony, she would have made herself look pretty for the event. Her breath probably smells really, really bad when she wakes up.
He has hurt you, she had no loyalty to you, he did.
Cogito is right, stay busy, make plans - it's what I am doing. Do you have DCs?