Ughh I hate it when people say that kind of ****, they think they have a clue when really they're being hurtful. I once worked up the guts to tell my friend about my BPII dx, and she laughed and said , "No, you are not BP, BP people are like *really crazy*". It was so hurtful, so I did just like Pegasus and Trippin say, I changed the subject (which was fairly easy because she really does prefer to talk about herself).

If you get into it with this guy again, you could tell him he's being hurtful, because he may have no idea about that and he wants to be a know it all.

Anyway we are here to support you!