Aww this one really tugs at the heart strings, because it can be really hard to be the one that takes a step forward in trying to be social. Especially when circumstances make you the sore thumb that sticks out and is ridiculed (or worse).
Sadly she is right. It's not that she has a strong heart, she has a dead one. No wonder the og turned evil, when even the isekai edition got her heart frozen. However, her heart is being revived and thawed after a long winter by a spring called Patrick.
Preeetty sure she's just neurodivergent. Doesn't fit in well with social systems or neurotypical people. Takes a lot of effort on her part to understand basic social cues, gets hyperfixated on things. They did a really good job on this.