Dd gave out 5 invites yesterday to a birthday sleepover. One of the girls said "Why have you done a fancy invitation? You didn't have to be all posh. You could have just rung me!" Then she folded the invitation up, put it back in the envelope and gave it back to dd! Now dd was quite hurt and confused (as was I!). I've asked dd to give the invite back to the friend today and say "I'm a bit confused, but I'd like you to come to my party." I'm thinking of ringing the girl's Mum to find out if there's an underlying problem, or is it best to leave it to them to sort out? The only thing I can think of is that I gave the Mum 4 party dresses that dd had grown out of for her daughter (only because she'd mentioned she had lots of family weddings/parties coming up). Maybe dd's friend is miffed at taking second hand clothes? AIBU to butt in or should I leave well alone?