Dating a bipolar guy
Take good care and be nice to yourself always, but particularly when you're going through a hard time. You do not have to apologize for how you were made. Surround yourself with people who love you for who you are and who never want you to apologize for something you have to struggle through every day. I know too many people who thought they and the world would be better without them.
This mood shift often spills over to others, and this can set the tone for the mood in the entire house.
People who have Bipolar Disorder often have a hard time sleeping.