Game of Speculation: “I don’t want anyone following me.”

There’s this moment in Brienne and Podrick’s scene in S5:E1, when she says to him:

(Since I paused my HBO Now account, I can’t take a screenshot, but it’s at around 25:30 minutes into the episode)

“I don’t want anyone following me. I’m not a leader. All I ever wanted was to fight for a lord I believed in. The good lords are dead and the rest are monsters.”

And I just wonder…are the writers foreshadowing something there? The context is that Brienne is asking Podrick to go away, as she’s depressed since Arya told her to fuck off, Pod’s a rather inept squire, and she doesn’t want him hovering around her. That could be sufficient explanation, and yet somehow that “I’m not a leader” seems really conspicuous. I mean…what does mentoring Podrick have to do with the all the lords either being dead or monsters? It is rather conspicuous.

Is she going to be someone’s leader later on? If so, whose? If not, then that seems a rather ponderous bit of dialogue to stuff into that scene. Something more appropriate for the context would be¬†following the part where she says, “I don’t care. I’m not your mother.” As in, “I can’t take care of you. I can’t afford to be responsible for anyone. I barely even know what to do with myself anymore.”