typically that's appeasing behavior - she's apologizing for her existence.
Anxious dogs tend to do this - in calm dogs, it's a puppy behavior that's retained into adulthood as a brief greeting, but taken to excess, it's abject appeasement.
If she's scolded, it will get worse - she needs a different way to relate to hubby; will she fetch?... Having her fetch his slippers is a good task when hubby 1st gets home, it sends her out of the room to collect her composure, & gives her a task to focus on.
Rolling to expose her belly is also active appeasement, but when it's done on cue, it can be calming to have someone make smooth slow circles on her abdomen & stroke her chest down to her belly.
Having her point her face the other way makes licking impossible - if she can be convinced to stand butt-on, he can scratch her rump ahead of her tail, right along the spine & to the base of her tail; that's another calming contact. D.A.P. / Adaptil / Comfort Zone for Dogs
can also be helpful to anxious dogs -
it's a synthetic copy of the pheromone produced by nursing bitches, & it's intended to get the pups to settle down & suckle as quickly as possible, when Mom comes back from trips outside the nest.
It lowers BP, respiration, pulse-rate, & the secretion of cortisol, among others.
It goes on OBJECTS - not directly on the dog; the collar, the leash a hand's length from the clip, anything the dog lies on [the seat in the car, their bed indoors, a fave spot on the carpet], a soft-toy inside a seam, & so on.
A single spritz from the pump-spray bottle is a measured amount, & U can refresh it anytime; it lasts about 90-mins.