I had a similar experience in high school.
I only went to eat when my friend was in school. But he skipped school a lot so i almost never ate and went outside insteard or something. A few times I was so hungry I just had to eat so I just sat down with the other people in my class. I mean okay I wasn't unwelcomed but I did not feel comfortable at all.
Would it be out of the question to just sit down at a random table and see what happens? If people are acting cold towards you, it could be that your body language isn't inviting. I have that problem myself: "cold" body language, resting dick face, not seeking people's eye contact = people stay away from you and don't feel like talking to you.
Erection aids confirmed by me:
Buspar, Wellbutrin, Ginkgo, Panax Ginseng, Viagra, Ball Stretchers/Benders
Me: SA, GAD, OCD, Depression (dunno tho), AvPD
Daily: Lexapro 1.2mg ~~ Multivit 100%RDI ~~ Magnesium citrate 400mg
As needed: Benzos ~~ Inderal