Your wife may need more quality listening time for her to vent. Calling your Bi-Polar studies a crutch, seems to me like venting, but not a helpful, encouraging remark for your progress.
You have identified a goal of being more supportive to your wife's emotional needs. You seem to conclude that your wife does not need more understanding of B-Polar, for her emotional needs. Encouraging your wife to vent, is one way to meet your wife's emotional needs. Under Communications, there is a thread, "Listening Strategies for Men" One goal for your own therapy could be to improve your skills in encouraging your wife to vent. There is another thread on "Avoiding Heated Arguments" There is a thread on "compliments for wives".
I have recently made a list for myself of feelings that I can suggest to my wife, to generate good feelings in my wife. Suggesting, Feeling Good, Feeling Nice, Feeling Clean, Feeling Perfect, Smooth feeling.
When I ride the bus, I try to project to a female seat partner, that I feel she is attractive. Women can sense your feelings. Just saying "Have a Nice Day" can be said in an admiring manner.
Similarly, at home, you can give your wife devoted attention of admiration. Feelings of affection can be projected, and felt by your wife. There may be times of the day, or certain circumstances, when you want to interrupt what you are doing, to give your wife some attention. My wife usually appreciates that I come to the living room, near the front door, when she arrives home.
Caresses of endearment. Sometimes, I caress my wife in a manner that is pleasing to my senses. I should more often understand the acupressure of lovers. I should more often, give a casual caress, more designed for her feeling good/energized.