Did My Childhood Friend Activate Her Villainess Mode?

I'm an ordinary CEO, and I think my childhood friend has been acting a little strange lately. After I entered an arranged marriage, she seemed to activate her vicious-female-rival mode and became obsessed with making trouble for my fiancée. Once a week, rain or shine, without fail, right on schedule. After another familiar stunt, I heard a ringing sound, and then my childhood friend pulled a door out of her pocket. “Mr. Fang, I'm really running out of time to meet my deadline. Let's stop here for today and pick up where we left off next time.” With that, she pushed the door open and walked through without hesitation. Me: ??? Doraemon???