WTF is wrong with you? Why do you even post here when you aren't going to listen to what others suggest? We told you exactly what would happen if you did what you just did and sure enough it happened.
What you've proven to her is that you're insecure, scared, selfish and more. Does any woman want that in a man? Stop competing against the OW.
This is only salvagable if you stop making mistakes. Calm down, then sincerely apologize. Don't get emotional, just a straight forward apology. Stand tall when doing so. Just the apology with no blame on her side and end it. Keep it short and sweet.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.