I read a synapses about this YA paranormal book about fairies but I forgot the title or author's name. The main character is a girl who may or may not know she is a fairy. Unbeknownst to her she is engaged to another fairy. Meanwhile the fiance is guarding her behind the scenes against some danger. They are about to meet.

Any help in identifying this book would be appreciated.

[NoQuarter]

Sounds like the Faerie Path series by Frewin Jones.

I read the summary for the series but I'm sorry to say it is not the book I'm looking for. =(

The Fae chronicles by Amelia Hutchins? Fighting Destiny, Taunting Destiny and Escaping Destiny.

Nope that is not the series I'm looking for.

Could it be the Iron Fey series?
https://www.goodreads.com/book/show/6644117-the-iron-king