This gets easier with age and perspective. Regardless, I recommend the "no holds barred" technique. Look her straight in the eye and say:
"Most men will say anything to get into your pussy. We don't think like you do, and our motivation is fundamentally different from yours. Do NOT filter our behavior through the lens of what you would do in the same situation, and do not use Disney romance stories---or other popular romance ideas---as your template. If a man thinks you're marriage material, he'll say so---not HINT so, but SAY so!---if he's a man worth marrying. Anything less, and you're just another pair of clam strips to him."
Tough love works, and it's needed now more than ever.
"Most men will say anything to get into your pussy. We don't think like you do, and our motivation is fundamentally different from yours. Do NOT filter our behavior through the lens of what you would do in the same situation, and do not use Disney romance stories---or other popular romance ideas---as your template. If a man thinks you're marriage material, he'll say so---not HINT so, but SAY so!---if he's a man worth marrying. Anything less, and you're just another pair of clam strips to him."
Tough love works, and it's needed now more than ever.