it started 5 months ago, me & my gi

it started 5 months ago, me & my girlfriend fought a lot, i was lost, i was blind, i came to this girl, we never talked before, i contacted my friend to know her number, i text her & ask to stop by in my place cause i need someone to talk and she came by herself with her own feet i'm not pushing anything, and then she go to the bathroom and told me she wants to take a shower and come out naked with a kimono towel, yes i was drunk and i was COMPLETELY WRONG, believe me, i never done this before, after the night i come back with full of regrets and tears.
i know it wouldn't change everything i've done but i asked to God for help every single day. i prepared to propose rachel not because i'm afraid, i know even tho we're married she'd leave me easily, i know i love rachel and just her, i made my mistakes, huge of it
after i prepared everything, this girl told me "the thing that you've already know", and then she put the blame on me, but she already blame someone else before me, which is insane and confusing cause she don't want to take any test to proof it. i don't want to debate anything i told her that i will take responsibility in financial a but not marrying someone i do not love, and talked to her parents to make everything alright and i know it's absolutely not right. i know this is a huge mistakes, but you have to believe me that i'm not that kind of guy, i know this is wrong.
i know all of you love rachel as i love rachel, that's why i tell the truth here, and i know all of you disappointed by what i've done.
can i have a second chance? please.
i hope that i can turn back the time to make this all alright for us, i promise to build a new world for us two...