<human>: Throwaway for obvious reasons. 
Alright, I had an affair. It was stupid and selfish, I know. I ended it last night, it had been about 3 months. I've heard that unless it's critical they know, telling a spouse about a past affair hurts the cheated on party more. 

I don't think my husband needs to know. It would really hurt him. 

The guy I had the affair with [37m] is also crushed, said he loved me and doesn't want to lose me. I'm scared he may do something stupid like try to contact my husband. I don't know if he will, but I sort of feel like I need to get ahead of the story.

Could you distill the essence of the text into 1-3 sentences?
<bot>: had an affair that has since been ended. Don't know if I should come clean to my husband. Worried the other man will tell my husband.