I agree - don't blame this behavior on his disorder. Also don't think other people with bipolar are going to treat you the same way; if someone treats you like this, it's usually because of their own insecurities. People put other people down to make themselves feel better or because they're just bitter people sometimes.

My dad used to treat me like this and it only escalated. My best advice is to block out what he says. I was anorexic for years because of the comments he made about my weight, he made fun of me and my family laughed, I took everything really personally and I was very sensitive (which is understandable because it's your family) but PLEASE don't have the same response I did. When I became underweight they only made fun of me for that too. Sometimes nothing is ever good enough for some people and you just have to move on and take care of yourself.