I agree that it's an interesting twist you don't see often. It's execution is great - you can really see the distress of the heroine. However, I think it's exactly because she's acting like a real person would (always unsure and suspicious of her surroundings, even with a person we know is good), that many are becoming tired of it (myself included).
I just hope for something in near chapters. She doesn't have to suddenly understand words because of some unexplained magic. Just give me something, even gestures/drawings after she becomes calm would be nice.
Also, this type of romance with a twist is always something I look forward to ( ´ ▽ ` )
Lol, everyone is hating on how shes acting and how she cant understand anything but i love it.. its so unique and adds these interactions that make the characters try to understand each other from how they perceive.. and since its a romance theyre obviously gonna fall for each other without words.. i think its cool