After respectfully pointing out to your husband all the reasons you want to go (should be going) to the reunion and he says that he's ok with your going without him (or with him!) then go and enjoy your time. If he asks that you not go, I believe you should honor his request and not go. I know most people in today's culture do not feel that way - I do think it's the way to do things in a home. Your children should see their relatives, you should all go away as a family, but if he says no, the answer should be no - without any 'threats' of hosting the reunion next year.