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

We have been married for 3 months and together for 3 years. Friends for 8 years. 

I (**23M**) don't know what to do. He(**30m**)(also married) confessed feeling towards her. She(**26F**) turned him down and told me to prevent future blow up. I (and I assume his wife also)was already suspicious because they have been getting closer than I am comfortable with so it was a good thing she told me as it would have blown up soon.

I feel betrayed by my best friend and I'm not sure what to do. I think he might be confused because he's having a rough patch with his wife.  But I don't know. I spoke with him and he said when she said no he dropped it but why would he ask in the first place? 

I am torn between putting it behind us and writing him off completely which, might cause him to get a divorce if his wife finds out why we all don't hang out anymore.

There are many more details that I am too flustered to think of how to put them without being to revealing.
<bot>: Best Friend gave my wife the opportunity to cheat, She declined and told me. Confront him and now Don't know if I should put it behind us and move on or write him off completely.