Ending was crap and rushed asf lol. Could have ended the same way (by him kinda dying) but with much more development than it did. Realistic? This is not even realistic, irl teacher would die. That is what happens in lots of cases irl actually. A psycho would not kill himself and leave a victim free most of the time. Speacially a man, honestly.
"the ending was the only possible option" even chatgpt would've formulated a better, more satisfying ending that the last chapter, all that build up in season 1 for only to be wasted, no used at all for the ending, giving us. loop and plotholes to question.
Literally build up for nothing. A man like that would never have ended himself cause someone he saw as an object didn't say she would love him.
For those saying the ending is crap, they really must not have read the same thing we did... a short summary; imagine you are being chased by someone who says they love you and the only way to show that love is to threaten death (more than once), stalk you, threaten to kill those you love most, how would you feel?? The ending was the only possible option, I loved that the author decided to go for something more realistic than fiction.