I didn't say her feelings weren't true.
Sorry for misreading then. I took the "She wasn't serious" as a statement. @_@
We can agree tho, that Igarashi's action spoke against her intent. Or at least, one should assume that if one likes/loves someone they would refrain from actively hurting them.... well, when they truly love someone, at least. In the most basic sense as "the unselfish loyal and benevolent concern for the good of another".
Yet, after the latest chapter and the insight gained from it, I'd say at least Igarashi, in her own mind, thought her love / affection was true.
She's wrong, by moral standards, of course. Her "love" and actions spoke more in the lines of obsession / possession. But, she was serious enough to still send those chocolates after being freaked out for "straying from the norm".
And from how I see it in this story, she knew what she was doing.
I am not so sure she knew what she was doing. As of now, I believe that she lacks that significant part of empathy; to even realize that Chidori's "heartfelt feelings" could get hurt by her 'teasing, having fun' and straight out crushing Chidori's feelings when confronted about her "nice guy who tells me he loves me" boyfriend.
Not knowing doesn't make it any better, of cos.
Being confused by one's own feelings and cultural/social indoctrination doesn't excuse hurting others over and over again. Especially with no remorse for the pain she caused but only crying when she feels the pain herself. And as said above, especially-especially hurting ones whom one supposedly has deep affections for.
The fact she didn't even consider that Chidori may be so hurt or fed up or strong enough to move on after being treated like this (and reject her for the 2nd/3rd time).... is not excusable. That is, unless next time she shows up she brings along a doctor's note attesting her to be a psychopath.
If not, then yeah, self-centered biatch may have not been aware but she's still a self-centered biatch.
And that last chapter did not make it any better. Tear or no tear. Hmpf.