A couple things come to mind:
- It’s amazing how some people become subject matter experts after googling the topic for five minutes. Dunning-Kruger, anyone?
- His problems with you stem from his basic dislike of women. i.e., Not your fault.
- He’s so insecure he just has to belittle someone who’s demonstrably better than he is. Also not your fault.
All right, three things.