So if coin collecting is numismaty, and stamp collecting is philately, and butterfly collecting is lepidoptary, what is spouse collecting? While I understand you completely, I have this bizarre image of $spouse either on colored velvet under glass, or in a glassine protetcive mount, or pinned to cardboard with straightpins.

*snort*

But of course I can't get over the PUNishing aspects of "-maty" wrt a spouse. And running with that, imagining a spouse-sized variant on a 2X2, I come up with a certain image of Han Solo, encased in ... whatever it was.

Carbonite.