I am starting to feel worried and guilty because I am gradually becoming less and less interested in men, my boyfriend included, and it's not even because I'm deep in NRE or lust with a lady; my relationships with my fwbs are wholly casual and infrequent. When I first started dating my boyfriend who was my first partner almost 5 years ago, I identified as asexual, then demisexual, then androsexual/heteroflexible (briefly messed around with a few other guys and wasn't really into it), and now I have a very strong preference for women and AFAB femmes. This isn't causing any problems in my relationship because my boyfriend is having less sex with me and more sex with his fwbs.

For those of you who are bisexual or pansexual in an open relationship, how do you emotionally handle when your sexual attraction shifts from one end of the gender spectrum to the other? How long does it last for you? I don't want to throw away my relationship because of sexual fancies, but my totally not gay high school fantasies of having a female BFF that I kiss and spend my life with are looking more appealing.