I can understand that you would not feel comfortable in a large group, but to say you don't do people well is a nonsense, as you organise outings and invite others along.
I don't honest! meeting people for the first time is something I really don't enjoy, I have to do it for work and I screw myself up to get through it. When I have organised outings its invariably with people I know - a comfort blanket. When I first met Diane it had been arranged that I'd be in the same B&B as someone else. I couldn't escape. If I had been on my own I could have just gone to Minsmere and just gone around on my own. No one would have known. I have done that before! Stupid I know but hey.
I don't make friends easily, I have acquaintances, mates but friends? very few. My definition of friends is very different to most people, it means a lot more. I tend to put barriers up and make it hard for people to get through, I've always done that even at school. Of course for the people who I think of as friends .....
A few times in life I've found social events being organized and I've not been included, almost as if I'm invisible. I can well remember one event. A group of people I was with had planned something. Plans were well advanced everyone knew about it and I was sitting there thinking eh? you what? I obviously didn't go and a few people were surprised. I remember someone asking where I was and I said uh well since I wasn't invited I didn't go! "But everyone was invited" they were quite surprised when I said that the first I had heard of it was at the pub the previous day.
I don't do small talk, I tend to be on the peripherary. I find myself an observer when in large groups, I find conversations going on around me, I feel like I'm sitting in the middle with people talking around me. In large groups I tend to stick to those I know, my friend Min will tell you I can be clingy. I've got better at this over the years but inherently I'm a private and solitary person. I, of course, can project an image but that is a defence mechanism.
I've read the above several times and I hope no one thinks I am feeling sorry for myself, because I certainly don't !! I quite enjoy life if I'm honest. Well the bit between 7am-4pm Monday - Friday is a bit of a drag! but hey you can't have it all.