can someone please explain this?

and this is a turn on?

@ArthurShadows60 Ya that is a bit confusing, you'd think an unflirty sim would be attracted to other unflirty sims not romantic sims.

@ArthurShadows60 Your Sim’s turn on and turn offs is unrelated to your Sim’s traits - instead, turn ons and turn offs are picked in their own panel which is a second tab after likes & dislikes. Those turn ons & turn offs then look at other Sim’s traits. So you could, for example, feel awkward flirting yourself (unflirty trait) but still be attracted to others who will be more romantically outgoing than you (romantic trait). 

I’m currently playing a gloomy Sim with optimism set as a turn-on - I figure he needs someone pointing out the bright side!