Well to answer your first question, "are some people against me or is it paranoia" I would have to lean more toward paranoia. If someone doesn't know you personally, there's no reason why they would be against you, or dislike you.
Just as an example, let's say that I'm going to a college to meet with a professor that I've never met before. I don't know who this person is that is a college professor, and since this is my first time going to meet this person, they haven't met me before either. You build relationships with people by getting to know them, not by looking at them from afar and making up how that person is or isn't.
Kind of like my doctor I saw last year in August. Her and I had never met before, but from talking, telling her what is on my mind, and her telling me things she would like to do such as blood work and an ultrasound, we got to know each other just from that first meeting. Now we didn't know everything about each other, but you gain that knowledge from interacting.
If you go to meet someone for the very first time, and they talk down to you, just walk away and meet other people. There are always going to be good people and not so good people in the world, but not everyone is bad, not everyone is making judgements on how other people are. At least I know I'm not.
But I don't think others are treating you in a way that's not good. If you don't interact with people, you can't be treated good or bad. Now if you walk up to someone and they look at you and spit on the ground, okay that's cause for concern. But from what you described you chose to sit by yourself, and that's a decision you made. Other people notice things like that and will stay away. Now to be a part of a community we have to be involved. So if you happen to go to another event like this, go sit with people, be a part of constructive conversation. You'll be surprised at how people connect, just from simple conversation.
I know, it's difficult to do, but we all have to break out of our shells we've created at some point, and move forward with our lives. I'm finding that it's unhealthy to just shut off from the rest of the world. With the way things are it seems like a good idea, but trust me, just connecting with people is such a good thing, and it's always good having more people you can rely on in a time of need :)
