I kind of understand this lesson: http://www.nihongomaster.com/lesson/view/106/comings-and-goings , but at the second dialong (she talking on the phone with him) I don't get why is he using the verb いく . Because, before the dialogue it's writen: ,,When you use いく or くる, always remember to speak from your own perspective.'' So he shouldn't use the verb くる, to say that he is coming to her? Or, it's like a rule, that you have to say that you are going to someone instead coming to someone?
I'm not a native English speaker, but in my country I can use both in this situation. :)