The girl's personality is a bit worrisome and unlikable... I'm really not into dorky FL. I prefer FLs like from the Villainess Turns The Hourglass and The Villainess Lives Twice. But anyway, I'll stay around coz the butler seems nice.
I've seen this plot before, but for some reason it feels a weirder than normal that he's so in love with her but it's not really the person he loves... I'm not sure why that is.