It's human nature, we only appreciate what we have when it's gone.
My H tells me this too. H says that that is why maybe we should get a legal S so that he can see what it's like without me.
that's fine just as long as he knows that when you're gone and he realizes this and wants you back, it won't be his decision, you'll have to consult with your boyfriend and ask him how he feels about your husband's "awakening" ;-)