How? by getting mad when I tell them I'm not interested. And I actually have a boyfriend now. And I tell them that and they ignore it and continue to flirt. And when I told one of them I had a boyfriend and I ask him to stop and he asked why. Didn't I just tell him why? And yes I did block the ones that keep flirting after I told them to stop. And it's disrespectful to flirt with someone that's in a relationship.