2T - sorry about all that happened with the IC. Not fun to go in to IC and feel like you were at Charles Schwab.
Mleigh has already given you great advice. I see all that talk from your h as a form of not being able to see you as different from him. He thinks you think the same way he does as far as needing to socialize. If this is not something you want to change about yourself, I agree with Mleigh: differentiate yourself in a friendly way. Might also be a good truth dart?
As for the going out to eat by yourself, I get that. I too have a whole lot more alone time now than ever. My salvation has been audio books. I am listening to so many amazing books that I would never take time to read. This has been a life savior, particularly at the beach where apparently, if you're there alone as a woman, even with a wedding ring, you are fair game?!? Ew. Sometimes I put my headphones in when I am not listening to anything! It's like flashing a sign: I am not hear to talk to anyone!
Thinking of you!
Me 41, H 47, M 15 yrs, S11, S13 BD 1: 11/4/14 we work on it; really I pretzel myself BD 2: 3/31/15 H goes down to "dorm room" 8/15: H back to MBR 10/15: H back in dorm room 1/18: H files, now divorced