<human>: Summarize the given text in a few sentences.

I went out for drinks with a friend last night because she was upset. Due to her urgency I didn't have time for dinner and had barely eaten all day so the bottle of wine I had (over the course of several hours) hit me hard.

I also revealed to her something that has been weighing on my mind a lot: that I had found a lump in my breast. Relevant because I was very emotional and distressed about it. Next thing I know she leaned in and kissed me. Close mouthed, matter of seconds, but I was slow to respond because wine and emotions. 

I left the bar immediately and managed to get in touch with my SO and tearfully explain and apologise profusely on the walk home and he said he wasn't angry but we haven't talked in any depth about it.

He's coming over tonight and I am fully prepared to grovel but I'm just so scared he'll leave me. Would you? How would you want someone to show just how furious they are with themselves and how sorry?
<bot>: female friend kissed me. Told boyfriend immediately but racked with guilt and terrified he'll leave me. How to gain his forgiveness?