Help! Don't know the title

[Resa]

So I read this book a couple years ago and it was really good but for the life of me I can't remember the name. The main character was a girl who met a guy who was in the tied to a fairy queen. The guy helps the girl by giving her different gifts like special clothing. In the end she falls in love with him but finds out that he is going to be taken to fairy land. The only way to stop it is if she is able to hold onto him through out the knight and all the things the queen throws at her.

[Jai]

It's the Tam Lin fairy tale, and there are many variants. Try the Pamela Dean version, see if that's the one you wanted.

[Barbara ★]

If it was young adult, it could be either Wondrous Strange or The Iron Witch.