When you find your one true love, you're both supposed to live happily ever after no matter what. That's how the story goes, isn't it? Because no matter how big a problem may be, you know for sure that your love will find a way.
...Except you don't, do you?
When she first started her relationship with Discord, Fluttershy felt completely certain for perhaps the first time in her life that it was...right.
She knows Discord loves her; surprisingly, she isn't concerned about him leaving her.
She's just worried she doesn't love him back.
Reading the prequel is somewhat required but whenever I see that a story I wanna read has a prequel that has to be read beforehand I feel demotivated to read either so READING THE PREQUEL IS NOT NECESSARY