SH: You're not ready!
Me: I wasn't sure if we were going.
SH: But I said we were going.
Me: At 4:45, you said you wanted to go at 5:15. It's 5:28.
SH: I didn't say we weren't going.
Me: When you weren't down at 5:15, I assumed your plans had changed.
SH: You should have asked! When I'm late, I assume the waiting party is ready and waiting for me.
Me: Nope. I'm not getting ready unless I'm sure we're going.
SH: But now I have to wait for you to get ready.
Me: That's the idea.