Some friends (family with kids, he is DH friend from way back) had asked us for dates when we could visit them. It involves staying overnight given the distance. A month ago, we suggested this weekend which they couldn't make. So we suggested next weekend. I didn't hear anything back, the children asked if we could do something in our city for Hallowe'en and I agreed. DD has bought herself a costume with her pocket money.
Today DH started a conversation about what gift should we buy. I found out that his friend had replied yes to next weekend but not copied me on the email. (I was copied on all preceding messages).
Our kids aren't particularly friends with their kids. They all get on fine when they see each other but our kids don't feel like they'll be missing out by not visiting and do feel like they'd be missing on the Hallowe'en plan if we go. I didn't tell DH the DC and I had made plans. He is often home late from work and misses out on many conversations I have with DC at meal times. He was there the day before I took DD shopping for her costume (a couple of nights ago) but is often tired and zones out a bit from the conversation.
Do you think it's reasonable to explain to them the mix up and try to find another date (probably in the 2016 now as we have lots of family birthdays at the end of the year)