Romance novels vs. fanfiction

I recently saw someone on book twitter say that it's a convention of the genre that romance novels have to have a happy ending.

That surprised me, because when I do read romance, I'm usually metaphorically peeking between my fingers, feeling like this is all going to end in heartbreak.

Often it's not worry about whether the couple ends up together, but rather worrying that they're not right for each other. Especially in cishet romance, I'm fearing that the male lead is unsafe for the female lead. (After all, we all know that handsome and charming does not necessarily equal safe!)

Even in the In Death books, which I have been reading and enjoying for OMG 15 years now, I read the whole first book and didn't feel that Roarke was a safe partner for Eve. I only even started the second book because it had already arrived from the library and it eventually won me over. 

The problem with early In Death, which I think is also the problem with many romance novels, is the author is writing from the assumption that the couple belongs together. But as a reader, I just got here. I have no emotional attachment to the pairing, I have no reason to believe they belong together, and I'm not motivated to suspend disbelief. The author would have to win me over and actually demonstrate that they belong together, which authors don't always do.

Because of this, I don't read that much romance. 

However, I just realized this is why romantic fanfiction does work for me. In fanfiction, I already know the characters and I already agree that the couple belongs together - that's why I'm reading that pairing! So the author doesn't have to win me or the rest of the audience over. Everyone already agrees that the couple belongs together, and we can just enjoy the ride. For example, I recently read an AU where one main character (who was in a position of greater power) accidentally kidnapped the other (who was in a more vulnerable position). In original fiction, that would be appalling! But, because I already agree with the author that the couple belongs together, I'm like "Oh, that scamp, how's he going to get out of this mess?"

Writing this out, I realized that I more often start shipping characters from movies or TV shows rather than books. Something about seeing the relationship played out visually is more convincing to me. Other than In Death, I can't think of a pairing I've started shipping after reading them in a book. But nevertheless, once the shipping is established, text continued to be my preferred medium for fanfiction.