Honestly, that wasn't the part that jumped out at me. It was this:

"It was neat."

There's a setup here for a John Updike-like disappointing marriage IN SPACE, but I bet the author doesn't take advantage of it.

Also, FWIW, when I taught college in North Carolina there were several students who got married right after school, apparently in part because they were saving themselves (a fellow teacher was close with a lot of her students, and tended to get the lowdown). I was surprised it was still happening, but there you go.