Scientifically speaking why do men fall in love? like from an evolutionary point of view, aren't men supposed to impregnate as many females as possible? The last months (i think due to isolation from the pandemic) I've been obsessing over a girl from college, i literally cannot masturbate thinking of anything that isn't her, if i try to jerk off to porn or whatever my mind will just wander towards her, why would a feeling like this be an advantage to primitive humans?