The least you should do is thank the couple for the invitation
and express your excitement about their news. Recently, at a family gathering, I overheard my father-in-law
ask my oldest to grab him a "beer" from an ice chest.My father-in-law
is overweight and drinks a lot. Any invitation
should be received with gratitude, even if it is to an event you won't be attending.Your husband's "stepgrandson" (maybe you could start to think of him as a grandson) is about to add a family member to the mix.