I've a close friend who is bipolar, although I'm not sure if this is relevant. We've been good friends for a couple of years but at the moment she is going through a really stressful time; rocky relationship and stuck in a job she hates. I've tried to be a supportive friend but her behaviour to me has just been horrible, she has lied to me, tried to wind me up, and been generally unkind frequently over the last few months. When I've challenged her she says that as long as her bad behaviour makes her happy it doesn't matter if it hurts me.
I try to focus on the good memories I have of her and that this is hopefully just a stage, but I really want to distance myself and tell her i need time out from the friendship as it's repeatedly knocking my self-esteem. Is it wrong to give up on a friend when you suspect that they have mental health issues affecting their behaviour?