Hold on and pretend it's a plan

I remember first encountering them some years ago in the Soap Opera world. At first they were kind of cute because they were used sparingly and seemed to be only for the super-special couples. Once the practice proliferated to virtually any two characters that ever shared screentime together on any show ever, I found it much less cute and fun.

I hold on to the hope--which waxes and wanes--that the practice will eventually die out.