She really is stupid, isn't she?
This new guy is obviously another of Oscar's plants to make her life miserable, and who does she go running to for help? The very cause of her problems.
Isn't it a bit early for Stockholm Syndrome?
I guess she is a bit too shoujo to even consider hiring assassins to take out that multi-world stalker, but at least if she did her life would become a lot easier (assuming he didn't have contingency plans in place to torment her even in the case of his death).