Recently found out my ex has been FT what's app a married lady (who is also married) whilst we were together. Naturally I'm devastated, however I know you don't end up FT someone you just bumped into. This was only a few weeks after we split up. I've got screenshots of this however am in 2 mins whether to message her the screenshot and see if her husband knows. It would make me feel better but I'm not sure in the long run. WWYD?