@The_Reviewer until he like probably tries to do something bad to her, there seems to be a theme with most of the characters' reasons for betraying the mc
@The_Reviewer In the first run, yes, she likes this guy, and the MC did something to him which caused her to hate the MC and plot a revenge on him. In the second run, this time, he is not going to be here to protect her, our MC, which will cause something bad happened to her, which I am assuming, will in turn cause regret like the first girl.