Responses
Typical trope of "If I can't have him, then nobody can!" He most likely snapped when past mc received the marriage offer from past ml
He doesn't have as much power now, so he can't do anything, but you saw him causing a tantrum in his room over simple rumors. His past life had the power to cause chaos all over the empire like he did in his room.
If he was inlove with him. Then why'd he kill him. Psycho ┗( T﹏T )┛