[...He's not going to bother arguing. Why would he?

It's a waste of time, especially over the phone. Instead he lets N say his piece, and then--]

But you're just hurting yourself more by isolating yourself--instead of fixing any problems.

[...]

Maybe I don't see what you mean because we spend our time together working so that you can work with your Pokemon, but...cutting off the people who care about you won't fix anything.