I am a 19 year old guy, in my second year at college and studying physics. I have never had or been interested in having a girlfriend. I have felt awkward for a while when ALL of my friends started dating people, and I was the only person left single. I considered dating to fit in, but I really didn't like anyone at all. People seemed to accept that I wasn't dating anyone and didn't bother me about it before, but now that has changed. It started with one of my friends, who kept telling me to date people, jokingly at first.
Now most of my friends are telling me that I should get a girlfriend. I can't figure out why they are suddenly starting to do this, as they weren't bothered by me not having one for the last six months. I keep telling them that I am not interested, but that doesn't stop them. Is there anything I can do or say to get them to stop, because saying that I am not interested doesn't seem to work?