I think she know what he said but it's the story that don't reveal that conversation to audience until final scene.

If Creator really want to focus on Sue's storyline,I think they should toned down Brick's storyline and make it as a long term problem, or start with Sue's storyline at first and then follow by Brick's or Axl's storyline.

Even I really love the middle, but this episode is gone a little bit too far. What kind of parents treat the kid like this, it's too horrible for brick, I watched the episode and hope to see the problem is sloved or at least be improving a little bit in the end of episode, but nothing happened except he has a new…

I thought they just tried to make an excuse to meet Axl