Why
I just read through all of it until the recent chapter, and I somewhat agree. The FL personality design falls a bit flat. Seeing her current personality isn't justified well either considering she was (presumably) already like that even before the "rumors" started, her relationship with her brother doesn't instigate family as a source either. Her choices from past to present isn't helping either, including her actions as well and dismissing it easily after the drunken mistake.
I guess author is vying for a "timid and dependent" stereotype of a female lead? Like damsel-in-distress scenario. Overall it comes of as a lazy character design.
It might be too early to judge considering its still less than 25 chapters (I also checked the raws up till 22), but right now, still not much noticeable character development or anything that can hook me in. So yeah, right now, FL's character is boring.
honestly the fl is annoying af