You're very warm. I take things personally and am easily hurt too, but when I look at Neurotypical people they seem to get by and have friends even when they're not consistently warm and friendly. It does seem like people have an easier time in relationships when they believe they're good at them. I've been trying not to remind myself how bad I am at making friends anymore, it doesn't make anything better.
Most of the time too people are happy to blame something outside themselves for problems, try not to let that be you.
I'm sorry your friendship went south.