Mental health is truly a situation that gets "milked" time and time again, both my the people who claim to care about the person afflicted and the person afflicted with the disorder itself. You are letting this person control your life. I have Bipolar. I would NEVER treat another person as he has treated you, especially with a kid involved. His Bipolar isn't why he is treating you this way. It's cause he is a narcissistic, selfish person. We accept the love we think we deserve. The sooner you realize that the better. Never talk to him again, eradicate all modes of contact. That is my advice to you.