Dave was consoling you as you were experiencing a mental breakdown due to your bipolar disorder.

You were being aggressive and knocking things over, which you couldn't control at the moment. Dave understood this, so he put you in a submissive position to prevent you from hurting yourself or fighting him.

When you were like this, he knew the only way to calm you down was to be gentle and give you kisses until you eventually stop fighting. He also knew that it was best not to say anything until you did eventually calm down.