I'm equal parts laid back and stubborn. It just depends on the context. I don't have a problem telling you what I want when something is important to me. Full disclosure: I'm annoyingly indecisive when it's not important.
I'm an introvert who learned really well how to appear to be an extrovert when the occasion calls for it.
I find excessively emotional, negative, and/or dramatic types exhausting. They don't make sense to me and I tend to mentally shut down and withdraw around them.