Most Helpful Guy
I was going to say, tell him what you just said but it appears you have. Tell him you need to talk. That always gets people's attention. Tell him what you just said, then emphasize that you will break up and break his heart if he continues.
Make sure he understands how you feel. Do your best to maintain eye contact as well.
Most Helpful Girl
If you told him you don't want to date right now, he should stop approaching you for kisses and touching you and stuff.
Just tell him "I already made it clear, I just need friends right now". "Or, we need to dial this back because it's moving faster than I want right now."
You don't have to give him this to keep him as a friend. Either he is your friend and he will be friendly about it, or he is not your friend, and you don't need those kinds of snakes in your life.