It is not really a crazy thing. I think most people want to be liked. A lot of us will go a long way to make others like us. It is uncomfortable to not be liked.
I have like the opposite problem. It doesn't really bother me that people don't like me. I kinda expect it actually, and so it surprises me to find that people actually do like me. What I have always resented though is to not be considered. Like I am not even worthy of not liking...indifference hurts the most they say.
It's always all or nothing, never anything in between. :
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I either like someone or I hate them. There is no in between. But for me it is not set. It changes all the time. It confuses people. I recognize it is not fair that I do this to others and that it causes a lot of pain. It is something I am constantly working on.
Recently my sister, who is well liked by most everyone, told me that it was a big concern of hers to be liked by everyone. It was a lot of work and very exhausting and she did not like being that way. But then she realized that not everyone is going to like her and that is okay. She doesn't like everyone she meets and sometimes it doesn't really have anything to do with that person, it is just the way it is. She said that gave her a lot of peace.