I stole a mate and the things I have done to her are unforgiveable

I was a bridesmaid at a wedding and I stole the groom. The guilt is eating me alive and I couldnt take it anymore so im posting this as an attempt to feel better. I cant tell anyone because im too humiliated and i dont want to ruin my career. I got close to her when i first met her and she trusted me completely as she thought i was her friend. I know the things i have done are unforgiveable and im disgusted with myself, but i am now living with the guilt of ruining her and her family. This all happened 5 years ago. I am not proud, this is something im ashamed of.<br><br>Edit: I was already familiar with him before we met. We met in school when we were 15 years old. Then i moved to another city when i was 17. We talked for some time over the phone and then we parted ways. Few years later when we were in our early 20s we met again and that time we had an affair and then again parted ways for 8 years until i was called over to be a bridesmaid. I know i was wrong for ruining her life and i should have left him alone. I dont condone what i did and i am ashamed of myself. This is my confession and i am hoping to move past this now.