one thing that i've noticed and begun to seriously appreciate upon rereading the watch novels is --
sam and sybil are not in love when they get married.
they like each other, but they aren't in love. and i think this is why sybil seems to be kind of in the background of men at arms and feet of clay, like, sure, she's his wife and he appreciates her and cares for her but he doesn't love her -- yet.
and i think it's the knitting moment at the end of jingo when it happens to him. like that john green quote about how you fall in love slowly and then all at once? i think the moment when he comes home and she's been trying to knit him socks but she's no good at knitting and so it ends up being a scarf instead of socks -- i think that's the "all at once".
and then after jingo, suddenly sybil matters more to him, appears more in his thoughts, he's so proud of her in the fifth elephant for everything she does (she is such a badass in the fifth elephant), and it's the cigar case she gave him that is what he longs for amd desperately needs to hold onto in night watch, the memory of her. she's much more important to him and his perspective in the later watch books, and yes the doylist interpretation is that sir terry developed the relationship more as he grew as a writer because he didn't feel like he was very good at writing romance, but i like the watsonian interpretation --
that sam vimes was not in love with sybil ramkin when he married her, but instead fell madly in love with her along the way.
I'd like to highlight the beginning of this especially. Sam meets Sybil in Guards! Guards! and falls into a relationship with her after. In Men At Arms, when he's coming up on his wedding, we get the following passage:
Be honest with yourself, Sam: do you care for her? Don't say 'love,' because that's a tricky word for over-forties.
In the end, of course, he does marry her; he decides that he does care for her, and that his care for her is enough to offset the parts of his life that he's willing to compromise to make a life with her. That this is something he wants, that they both want, even if they aren't madly in love.
He falls more in love with her later, but I want to emphasize that even if he never had, that would have been all right. It was enough for them to get married because they cared for each other and made a good partnership. It was enough that Sybil wanted to be married, wanted a partner to share her life and her inheritence with, and wanted Sam Vimes to be that partner. It was enough that Sam liked her and cared for enough to be that for her.
It's fine to make a life together with someone you aren't romantically, or sexually, madly in love with. It's enough that you care for one another, and that you make a good team. It's more than enough.