Interesting question may be, is other wife not in to the LS, or is the other wife not into the two of you?
Or as FL suggests, sometimes we are just not "in the mood" and will occasionally try to placate our partner
by giving in. Is this what happened here?
We tend to be over communicators; we won't hesitate to simply ask people "may I have your help please.
we really are trying to understand where this is going tonight; is there anything you would like to share?"