What's wrong with that broooo.... Why your so angsy towards her like that.. (￣∇￣")

because if she starts to like him it messes up the entire story he knows

Yah, but he didn't like acting it or what which is sudden, And sus. as the character body is moody like that but the mc personality are not.

as a reader seeing he becomes soo grumpy out of nowhere towards her like that is exhausting..
Idk maybe he didn't realize that the old owner personality unconsciously eating him out.