How is it that you deal with rejection (of course I am talking to those who don't have the luxury of not experiencing it)?

As EVERYONE knows (I am such a whiner) I have been single for a LONG time... and usually I have lots of walls up and make loads of excuses as to why this has been the case. Anyway, won't go into many details here, but with my son out of town, I extended the invitation for dinner at my place (tonight) to a guy. I mentioned this to him on Friday at which time he said yes he was interested and didn't see that he would have any problem making it. I told him to give me a call when he knew for sure... needless to say I haven't heard from him (it is 3:30 now) and am pretty confident that I won't until the next time I happen to have YIM on......

So.. tell me.. how do you deal with such a situation... any insight?