Is she seeing a Therapist? If not she really should. Yes partners should help each other but not to the degree that is going on in you're relationship.

How long have you been together? Usually there's a great " honeymoon" phase, did you two have that ?

I have Bipolar I . I see a therapist and I don't expect my husband to be my therapist 24/7. He's there when I need him, I don't allow Bipolar to take over my relationship.