I haven't been given the opportunity to converse with you yet,
but I think people have different perceptions of the word bitch, and whether you're being one or not. Some people tend to take things too seriously, Some can't take a joke.
Don't try to change your personality because a few people don't like it.
It's who you are. I'm totally sarcastic, and yeah I get called a bitch, but it's because I say what I think, and in the end, most of the people appreciate my honesty and stick around. IF they don't stick around, who cares? This is a very, very big world.