I need recommendations

I need recommendations for a good standalone book about a girl who falls in love with a man she’s not supposed to fall in love with. Only to find out that he’s been obsessed with her the entire time. I’m down for absolutely ANYTHING. As long as it ends happily.

I’ve read- •credence by Penelope Douglas •shallow river by H.D. Carlton •salvation by Selena Winters

Please please please and thank you Hermosas Reinas!!!