Dear Giselle:

I don’t agree with your boyfriend, that his flirting with an ex hookup is “so trivial”. There was a back and forth flirtatious communication with a woman, not one, but a few. Let’s say there was only one, he realized it was wrong and stopped, that would be one thing and maybe trivial. But he had time between the flirtatious communications to stop those, and he didn’t.

But if he understands now that it was wrong on his part and that your feelings matter, he may very well not do this again.

anita