<human>: Can you give me a shortened version of the text?

Throwaway for this.

As in the title I M19, cheated on my girlfriend of 2 years, 6 months ago. The cheating only consisted of a kiss whilst extremely drunk with my flat mate of the time. The next day (when I remembered what happened) I came clean about it all. It was a rough few weeks but we managed to get back to normal and everything has been fantastic as ever since the incident. 

Trouble is the topic of my indiscretion has popped up a couple times since it happened, its never been an argument just clearly a sad topic for her, so clearly she hasn't completely moved past it and heck neither have I. Let me just make it clear I would do ANYTHING to fix what I did, I didn't know I could feel this guilty about something. I know there is no fix and that if I want everything to keep progressing forward I just need to be the best I can be and hope the trust comes back. 

Anyway my question really is whether anyone has been through similar experiences of unintended cheating and still managed to continue to have a great relationship? or been on the other side of the cheating but managed to find the trust again? or is the relationship forever scarred? 

Hopefully this all made sense, was feeling kinda ranty.
<bot>: I (M19) cheated on my GF (F19) 6 months ago. I came clean and managed to get the relationship back on tracks, will everything work out or do these things always haunt a relationship?