Kuai Wen's Sweet Pet Is Endless

As a female supporting character, she counterattacked one small world after another. But who will tell her why she keeps meeting him? Why was he so cool in the past, but when he met her, he automatically turned into her loyal dog? It's obvious that sometimes it's her who attacks him, okay? But why do I feel like I'm always being attacked by him? It left her with no sense of accomplishment at all.