If you try with people and they are aloof, standoffish, do you continue to try with them or move on ?

Look if some people are giving you signals that they don't want your company, just move on. Why continue hurting yourself and feeling rejected? Only hang out with people who accept you as you are. I wish you lots of luck with your treatment and glad that you're willing to get it. Good luck to you and G-d bless you.