Oh hon I totally understand how you feel. I was done the same way a yr or so ago. I would've DEFINITLY cancelled. Why your friend didn't I dunno, perhaps she didn't wanna disappoint her daughter?? Either way, it was really inconsiderate & not kewl that she didn't cancel the party. My situation was a little different but nonetheless, the same...a friend asked us to help them move & I had JUST been over there the day before & this was the next day & she comes out & we hug like normal & I asked how everything's going, etc & just said the usual pleasentries. SO we help her move, she bought us 'lunch' at a fast food place & when I get home...OH boy I started puking & nonestop...couldn't stop for not even 2 seconds for 3 whole days! The WHOLE day & night for 3 days! I think I even had a low grade fever, chills, etc. I thought it was food poisoning from the fast food joint & was this close to going to emergency room. So I mentioned it to her & she said, "Oh, yeah my little boy had been sick w/the same thing this week..." Why she didn't mention it is beyond me. I was SO mad! I could've really gotten bad off...aka going to hosipital! She didn't act like it was a big thing to her. She said that no one else really got sick, just her mom & only a little bit so she didn't think anything of it. Well needless to say, we're not friends anymore (not just for that but other reasons too). Next time, to avoid any unnecessary driving, try to call first before going over. Even if no one verbally says "party cancelled" for whatever reason, at least you called & verified that 'yes' the party is still on or 'no it's been cancelled'. It could be as simple as a call, text or message on Facebook if you do Facebook, something like "Hey, just wanted to double check & see if the party is still on today..." I'd check on the day OF the party rather than night before b/c anything can happen overnight & even if it seems weird, I'd even go as far as making sure if the host or any of their kids are sick for added measure. You can non-chelantly say something like "Hey, just wanted to verify if the party was still on today..." & if they say something like "Oh yes, why wouldn't it be?" or "Oh yes, it is" & you could reply w/something like "Ok good, just wanted to check & see in case someone got sick & y'all had to cancel..." that way it doesn't sound like you're being "weird" about anything, just sounds like normal conversation at the same time finding out if anyone's sick. Hope this helps, Good luck!!