Spoiler!
Ive read the novel way back before since I've been waiting for the angst back then (since the webtoon was taking so long to publish it)
Basically kael so hestia on the balcony looking down (and in kaels perspective it looks like she was about to jump off the balcony) when (in reality, im hestia pov she was just looking down at the balcony and was just thinking about life? Or something about here past life before she became a regressor)
So since kael taught that hestia was going to jump off, he quickly went to hestia to stop her (and if i remember it correctly, kael pulled Hestia off the balcony and tackled her to the ground? Something like that)
Hestia was surprised that kael did that and was about to talk to him why would he do that.
But then upon seeing kael, hestia was shocked because kael wouldn't let go of her, he was shivering and crying
(Later on it was said that kael was in so much shocked and he was scared that hestia was going to jump off that he became so paranoid it literally everything)
