the male mc is just trying to be a nice guy, since he probably didn't have any experience interacting with opposite sex, being nice to her and getting slowly getting intimate most likely his only knowledge in this situation. Give him a break.
And by the looks of it the girl also kinda screwed up in the head, I'm expecting something like abused by parents or possibly, well, sexual abuse on her early age. I don't know if I'm completely right about this, but that kind of submissive apathetic behavior can't be without a reason. Putting oneself to that low position like 'it's normal for me to let others have sex with me if they want' is... Yeah, there must be something.
I'm expecting something interesting, I don't know if I will be disappointed or not but for now, I'm expecting character development and background.
it's only three chapters, chill guys.
Also NTR scenario kinda nice.