Sim romantic boundaries will remain on (yes) even when turned to off

Hi GuardingxCross 

unfortunately your pic doesn't load but it sounds like you're talking about sexual orientation ? That just means they are not open to advances towards the gender they are not attracted too. Sims can just try though, they just will be rejected.

You can find more info on the settings here: https://help.ea.com/in/help/the-sims/the-sims-4/the-sims-4-gender-romance-attraction-guide/ 

Hi crinrict, I attached a screenshot of what im talking about. My character is exploring romantically despite it being off.

Hi  GuardingxCross 

you only set how Sims to romantic advances with boundaries. Like if they feel jealous and such. It doesn't prevent them from flirting.

There are several reasons why NPCs flirt with your Sim like if you have the Freelove NAP

There's also this which is what you might be reporting: Sims excessively flirt with others | EA Forums - 12039807