So he decided not to be entirely horrible to you because you gave him what he wanted.

[He knows better than to say it, but a brief flash of anger and other more deep-seated and difficult emotions he doesn't want to work with prompts him to do so anyway; his voice is cold more than anything else as he continues.]

If that's how you'd like to deal with him, then that's your choice.

[But he's not in the habit of doing that; not anymore, anyway, now that he can make that choice. He sets his glass on the counter and picks up his jacket again.]

I'm going for a walk.

[Which may or may end with him returning any time soon.]