I suspect that the first two images were taken while the lady stood beside her man. You can just see a part of what appears to be an arm in the second pic that has the same tone and texture of the suit she is wearing in the subsequent images. Whip over the second, darker curtain and in jumps his lady for the next series of flashes.
When searching for photobooth gems to add to my collection I always keep an eye out for any series of pictures that shows the same person in different poses or at different stages of their lives. Even if it is imagined, there is more of a story to be seen when a face is viewed in different modes. There is a tentativeness about their togetherness that I find endearing. Maybe they had just met. Maybe they were not demonstrative types. Given the era of these photos I am musing on the fate of these anonymous faces. Military service at any time is fraught with danger and uncertainty. Did this young man survive the war? If yes, did their relationship survive it?
The red spots you can see on the last image are the remains of a red elastic band, which, luckily didn’t touch much of the surface of the photo. The back of one of the other items is covered in solidified rubbery goo. I like finding these little pieces of evidence that at one point they were carefully stored together and therefore loved by someone, before being flung out into the world and an uncertain fate.