Don't fool yourself, man. None of this matters in the long run.

She cheated on you. Broke your trust. Destroyed everything good you guys had going on. Basically, she not only fucked another guy, she fucked you, and herself. She fucked the relationship.

You cannot, and I repeat, CANNOT recover from your partner cheating.

Sure, you can "forgive" her, but you will always hold a deep resentment for her deep in your heart. You will never truly forgive her, and she doesn't deserve your forgiveness.

If you take her back it will only end in you two separating anyway. Ask yourself if you can look at her the same anymore after she decided to have another guy's cock inside her.

Dump her. Seriously, dump her. I know it's hard but you deserve better. You deserve someone who will actually love you right.

Trust is the foundation of any relationship.