Responses

He genuinely doesn't know about her abuse, and according to spoilers, he won't for a significant time. He also isn't that specific knight, I believe.
There's a relatively short story, side novel which is from Riftan's POV, specifically from their time as youth. This puts a lot into perspective regarding Riftan's feelings... especially towards the FL. The link to that short story should be lingering in the comment section.
i hope the fl overcomes her insecurities and prove her worth in someway/lh