<human>: Provide a brief overview of the text.

I've been dating my girlfriend for more than last 6 months now. I love her, things were going great and we've been also thinking about our future together.
During the first 2 months we decided to go exclusive which at first felt very fast for me but i was excited about it and I committed to that. I also deleted all my dating apps and stopped dating anyone else, but in a month after that, i still had a number of this girl and for some reason i decided to go on a date with her. I didn't sleep with or kissed her, I know that doesn't make right though. Fast forward yesterday she found out that i did go on a date with some girl as she stumbled on one my past texts.
I know I completely screwed up and now she finds to hard to trust me (rightly so) and this might end our relationship now. I know how it feels since i've been on the other end multiple times. I never thought I would be the one who would cheat. At the time I somehow rationalized that i am not sleeping with anyone else, but I know that doesnt make it right. I really did commit to her in mind at some point, and never meant to cheat on her. I know i can't go back and fix this, but how do I do make it work? I desperately want to be with her and genuinely see my future with her. Please advice.
<bot>: I screwed up my relationship by going on a date with someone else while we were exclusive in first 3months of the relationship. I really love her and want to be with her. Please advice on how do i make this better.