I would assume that eventually the pleasurable feeling one gets from sex and love if completely separated from reproduction would slowly disappear or modified to fill something like is required in the scenario described here. Sure one can say that beings in that situation might be considered "bisexual" but is that really a useful word? Wouldn't it be more accurate to say that the sexes as we know them basically disappear in a world where anyone can make a descendant by themselves if they have the resources for it? Being "bisexual" dosen't really make sense in such a context since anything like what we currently understand as biological sex is gone and is replaced by several competing reproductive strategies that only loosely fit the current distribution of reproductive strategies of the sexes.

I would probably self-modify to be asexual if it wasn't for current societal norms and modes of reproduction. I could get much more out of my limited lifespan if I didn't waste so much time with matters related to it. I'd rather do some math, or read more books or do some research or just explore and have fun in a virtual world.

My revealed preferences seem to match this partially as well. Mostly unrelated story: In the past I've actually been so disappointed when I ask people what's the funnest thing they can imagine and I get the answer "sex". Once I couldn't stop myself from saying back "Come on you can do better!". I got a blank stare and clear confusion. What is extra funny is that looking back I realize that in that particular context her answer of "sex" was clearly just one of the more obvious flirting signals that I had completely missed for over two weeks. Where in the fraking ancestral environment did I get maladaptive genes like that? Heh.