Whoa... I wish I had some advice but I'm not sure how I would approach this.
It's good that you told him you needed time to think about it. You definitely don't want to come across as too eager.
I find it ironic that as soon as you go on a date, he suddenly makes a move. I question his motive. Does he genuinely want to start making amends or does he simply not want any other man to have you?
Keep your guard up, Leah. Sorry I couldn't be of more help.