rec me some un-romance books?

( in which I blather about clichés in fiction )

( possible spoilers for Lackey's _Four and Twenty Blackbirds_ here )

So, are there more books like this out there? The obvious sort of plot device for this would be the clergyperson tempted to break vows who doesn't, but it seems like there are a lot more reasons two people shouldn't get into a relationship even if they like each other. Any recommendations, folks?