| I'm not sure that's true. I have little to no sex drive (am "asexual" as the kids say), but I've had intense crushes/obsessive feelings about individuals with no associated desire to have sex with the targets thereof. I imagine that for people with normal sex drives, both components play a role in initial relationship formation; ie, there's an emotional component in addition to "lust" as conventionally defined. You could quibble that these (relatively short lived) intense emotions are "lust", as opposed to the "love" of a longer relationship, but that seems to be playing a semantic game that doesn't really concord with how we generally use those words. |
It is also worth mentioning that people's lives arc on their own, in that they change. Preferences change. Values might even shift for some people over time (e.g. a religious person becoming totally secular or even atheistic later in life). And those changes also do not typically emerge in a couple of months of dating and flirting with one another.
It's.... just human nature.