POV of a bisexual man's monotonous sex life

As a bisexual man, I've been blessed with the ability to enjoy the pleasures of both men and women. However, my current relationship is not as fulfilling as it could be. My partner has a rather monotonous sex life, always seeking the same level of satisfaction from me. It's a bit like being a cuckold, with my partner never straying or trying new things. Despite my best efforts, she remains content with our routine lovemaking, never exploring the depths of BDSM or other fetishes that might spice things up. I find myself yearning for the thrill of a dominant mistress, or even the tantalizing prospect of being a slave to a beautiful femdom. But alas, I must resign myself to the reality of my situation, and continue to provide my partner with the same uninspired pleasure day after day. It's a lonely existence, but one I must endure for the sake of our relationship.