"Wow." Why'd she leave him with this jerk again? "Well, I suppose it's your choice if you'd rather I show up completely unannounced." In short, he could give her his address and accept the fact that she WOULD visit Sora over winter break, or she could find it out herself and show up at his door randomly.
"No, of course not. Bye!" She hung up on him via closing her phone, then opened it again to text Sora.
What is your rude boyfriend's address? I want to see you this break.
Sora promptly gave it to her. (Yes, he remembered it, though he wasn't quite sure the zipcode.) Sorry. When will you come?