Comment by boblax

She is definitely the kind of woman where a man shouldn't be making such advances. Let her be the acting party. She would have been telling another story if she were on top and had taken the initiative.

One of the simplest ways for a man to avoid the problems of consent where he suspects there may be is to be the one from whom consent is needed.

That is the absolute safest other than leaving. If you as a man attempt to get consent that may not be something you're able to obtain. She might be intoxicated and unable to consent. You might not know that. However what's safe is to let anyone initiate sex with you while you remain passive and let them have sex with you.

If you leave then I would strongly advise to say it is because you are feeling sick and think it's something you ate. Go to the toilet first and say you have the runs. That will cushion her pride and make her just glad you left. No chance of something mean-spirited.