Why is my sim attracted to everyone?

I tried this out in different save files, made new sims, and every time they meet someone, it's instant attraction. Right now, I'm playing with a male sim who's attracted to every single girl he talks to. I even edited his turn-ons to only black hair & brown eyes. And yet he's still crushing over every girl.....

And before I played with a female sim, and I had her start a yard sale, every male sim that popped up, she was attracted to..

even the random townies..