Welcome to the board.
I couldn't say whether her depressive response is related to your bp. I would guess it's probably more a communication difference. More important is how you respond it it. Do you let her think it out? Is that okay with you?
Co-Moderator, Bipolar Forum
It is a melancholy of mine own, compounded of many simples, extracted from many objects, and indeed the sundry contemplation of my travels, in which my often rumination wraps me in a most humorous sadness. -- William Shakespeare