What should you do when someone says no to or otherwise refuses or declines your romantic or sexual gestures or asks Accept it and stop making those gestures or asks. That's the right answer every single time: just accept someone's no and then back right off.
Asking or otherwise pressing over and over isn't the right answer. "Not giving up" (which often looks a whole lot like harassment) isn't the right answer. Trying to get them to change their mind isn't the right answer. Trying to get them to change their mind through their friends or family also isn't the right answer. And while it should be obvious, we so sadly know that it isn't: no kind of violence is ever the right answer.