ovarian cancer

bbxyy
so my friend's girlfriend broke up with him bc she has ovarian cancer and it does not allow her to go outside or else she'll get sick. apparently this isn't the first time she had it. she has it when she was younger but they took that ovary out (she's 17 btw) and now it came back and she claims she can't leave the house or she will get sick. now here's where it's gets fishier. she's moving to japan. how? she can't even go outside but she's going to live in a whole different country where they get sick quite often. if anyone can give me any insight on this it would be greatly appreciated