Please please please quit playing a passive victim:
"Invited himself to dinner"
"Then, when he was leaving, bent over and kissed me "
"better to be here - it limits his contact with me"
You are not powerless. Seriously, it is time to take responsibility for what happens to you and what you allow in your life. Control your own life and what happens in it, rather than passively letting him to whatever he wants with it.
Good luck in court. Any chance of support being increased?
