Respectfully, this guy doesn't sound like a rocket scientist, to be blunt. You'd think your name on the text would be a slight indicator that it's not this other girl.

Not to make light of it, by any means, but still.

You are absolutely right in saying living well is the best revenge. Leave this guy on the curb, and focus on you. I hope things go well in your therapy sessions, and I wish you the best of luck.