Passion, I think that is more of an external issue that the therapist can help you with. I dont think that the depression comes solely from bipolar, but probably from insecurities about the relationship. If youre like me the emotional feelings are stronger and I feel more vunerable because of that. However it isnt the sole reason I feel a certain way. Feeling rejected, even if it isn't 'valid' always makes someone feel terrible. I hope youre able to work through this.