New flower cardigan

Me: Can you put this on?
August: No, I don't like it.
Me: It's pretty. Try it on for me?
August: It doesn't matter.
Me: "It doesn't matter" means, "that's OK". Here, I'll put it on you.
August: You knocked off my glasses!
Me: I'm sorry.
August: You need to take off my glasses and THEN put it on.
Me: I'm sorry, you're right.
August: That's OK.