The last makes me think: "Hey, just like D.H. and myself, but very much so!" (We'll be married 20 years next June). Oh yeah...
Believe me, they need not necessarily be either mad at each other or totally run out of things to say to each other. This is a normal moment of "togetherness". It expresses in other things but words or hugs&kissing. They are STILL sharing quite something!