In search of an untypical romance book!

Hey! Newbie here. I'm on the hunt for an 'untypical' romance book that isn't cheesy or falls into the same, boring cliché of hating each other - hooking up - hating each other again - getting together - the end. I loved The Time Travelers Wife because it centred heavily around time-travel and it didn't end with a typical happily ever after. One Day In December is also is another one I enjoyed because of the betrayal and angst. I hate, hate, double hate Colleen Hoover so please no amateur writing recommendations that glorify abusive relationships. (Same for Penelope Douglas and the likes) Can be thriller, either, that is my preferred reading genre. Sorry if that isn't clear enough! Just good writing with prose and doesn't make me wince with the corniness is all i'm looking for!