So, PB, you didn't here from the guy after Saturday? Do you know why?

Did he really just drop you like a bad habit or is there possibly some other reason?

For instance, is he broke and his internet service got shut off? Did he get into a car accident and break his leg and is now sitting in the hospital in traction? Did he go skydiving and his chute didn't open and he's been splattered all over some farmland somewhere?

Without more information it is hard to tell if the guy really is a skunk or if he might just have a good excuse for not contacting you.