What an a&&! I guess that explains his one track mind lately. I really hate it for you. Yeah, I agree, go dark on him. I guess since the 'surprise' of your being served is not there , you can be a jump ahead of him, and be ready with your own L when he contacts you.
What happened when you walked in on him? Did they have the decency to at least cover their faces? I have a few choice terms to use right now, but they censor us on Sundays, too.