I kissed another woman while me and my girlfriend of 6 months were dating. She won’t take me back and I love her, any tips or should I just give up?

Anonymous
I was very messed up on alcohol one night and my girlfriend left me with three of my friends out late at night and went home to her house. Long story short my friends bring up the idea to go to my ex’s house ( which they are friends with) and hang out with her at the park. Keep in mind my friends knew at this point if I didn’t black out yet, I sure as hell have no self control. LONG story short my friends walked away and left me and my ex at a park and she sat next to me on a bench due to me not being able to stand or walk. She starts talking to me and about my girlfriend and I start think about her and think to myself I want to go home ( me and my girlfriend lived :( with each other) as my friends are laughing at me in the car knowing that my ex is manipulative and I’m HEAVLY under the influence. after ten minuets I eventually get up and say I need to go, so we head back to the car and we’re on our way to drop her off at her house. She kisses me for maybe 3-5 seconds. I’m immediately disgusted and ashamed. We drop her off and go straight home. I say to my friends do not tell my girlfriend, I will have to tell her. The reason why I need to say this is my friends think my girlfriend is very attractive, and I've known for awhile they would like to have sexual relations with her. Knowing them they would tell her and twist the story And she would leave me and all that stuff. Welp, I was right. Two days later where all hanging out late at night again, I decided to leave the car and go on a walk because I was drunk again and was trying to sober up before me and my girlfriend went inside her house to go to bed. Come back from the walk and my girlfriend and my three free where all staring at me, my girlfriend hurting. I said what’s wrong and she proceeded to yell at me, like she should. I turned around and starting yelling at my friends because they told her and lied. I love my girlfriend so much despite what happened. I need her back so bad. I wanted to marry her.
I kissed another woman while me and my girlfriend of 6 months were dating. She won’t take me back and I love her, any tips or should I just give up?
5 Opinion