My husband and I have invited a couple over for dinner, two weeks ahead of time via email. After 5 days, the lady (to whom I addressed the email) has not yet responded.
Should I follow up? If so, when? Is it fair for us to want to either firm up plans, or be freed to make new plans if they're not available or interested? Or, should we just roll with such schedule ambiguity, even until the day of the proposed event? Let's say a few more days go by. Should a non-response be understood as "hint" that they wouldn't enjoy coming over—or simply inertia, an oversight, or busy-ness on their part?
As a couple, we are mild-mannered and both a little introverted—especially my husband—but we are kind and hopefully worth having as friends. Inviting new friends over takes some mustering of nerve for us. As such, the last thing we want is to appear (or to BE) needy, so that's why we're seeking opinions here.