Niw i really want to know why he killed her even though he likes her so much

i think he knew she wanted to go to her real world and knew the only way the way get there is by killing her and if i am not wrong i also think he wanted to be her equal

but thats a bit contradicting. surely her reason to want to go back because her environment in that novel is ass. the whole reason is from haewon too, if he need them to be together, why took everything from her? making her life miserable? and even kill all those people

I am not sure, this is a spoiler I read from another site.

is it okay if I ask what other site you are reading on? I am only down to this site and I have no backup ╥﹏╥