Carolina still wants to love Dexter who doesn't love her. I don't know why she can act so stupid, only because a man doesn't respect her feelings which she honestly has felt for a long time.
And he, for some reason, can also behave which sometimes Dexter finds strange. But in fact it was because Carolina really loved Dexter, so she couldn't think straight. And he also just wanted to be close to Dexter, even though Dexter did hurt his feelings.
For some reason the Carolina didn't just disappear from Dexter's sight. He had been in love with Stella for a long time. But it's true that Dexter doesn't love Carolina either. And he kept hoping that Stella would have a crush on him too.
Carolina, who was blinded by love, just stayed beside Dexter, even though when and how she was able to bear alone, her uncertain feelings. Carolina also didn't know how long she would be able to endure the treatment she received from Dexter.
