can't decide

I'm having a silly little problem.  I was asked out casually today by this new sports writer at my work.  I'm always up to hanging out with new people and he seems pretty nice, so said "Sure".  It was just to meet up at a show tonight at 9pm (Steve Miller, formally of V-Roys; good country-rock-folky music).  Problem is I REALLY don't want to go now.  It's cold and pouring rain and it's quite a drive to downtown from where I live.  I'm still not feeling good, either.

(as an aside, I hate this "sick enough to feel crappy, well enough to go to work" funk I'm in)

But I don't have his number to cancel!  He says some of his friends will be there, so I know it won't just be him hanging out alone or anything... but it's just horribly rude to NOT SHOW.  Although it wasn't a super-duper "the only reason I'm going to is to see you" sort of thing either.  Ugh...

I hope he won't take it personally.  He seems really nice, but I just want to drink some Thera-Flu and go to sleep.

I am an awful person.