??????????????????????????????…

So I asked a question earlier about the guy I've canceled on about 8-10 not purposely it was just my schedule keep shifting but anyways he's still trying to get me to see him after I already canceled but I can't and I can't muster up the courage to tell him no again. What do I do? I really like this guy, but I feel like him asking again and me saying I can't again will just seal the deal and he'll be done.