Dear Eric: My wife and I have a fair number of friend groups. We enjoy social gatherings, especially dinners out, with all the groups. But only one or two of the couples ask us out as much as we ask them. The majority of the other couples only seem to go out with us when we initiate it, although they seem to go out frequently with other mutual friends. We’re certain they enjoy our company as much as we enjoy theirs and they readily accept our invitations when available, but we feel we’d never hear from them unless we initiate the contact.