Is Sexual Attraction Important For A Healthy Relationship Between Partners?

Hello, I have two different questions: 1) How important do you think sexual attraction is to a healthy romantic/sexual relationship? I am in a committed relationship with a man, but I have recently come to terms with my bisexuality, and I can t stop thinking about being with women. Currently, the only way I can climax is by thinking about women. My partner says he doesn t care what I think about, but it has gotten to the point where I am losing interest in him sexually. 2) Is there anything I can do about decreasing vulvar sensitivity? I am sensitive to the point where rubbing on my vulva with anything more than light pressure is painful, and it makes heavy petting and grinding difficult.