It's fine if he doesn't outright say the sulking part. Joker knows their ringmaster; he can make a reasonable guess that way himself. Instead, he focuses on other things, foot lightly tapping against the ground as he thinks.

"Ain't much we can do," he finally mutters, heaving out a sigh. "She doesn't want our help for this, and, knowing our lot, we'd probably just bugger it all up anyway. We're just meant ta be pretty background decorations." Well. Some of them more pretty than others, but that's not the point. This was obviously a power move from the beginning, and they were never a factor more than bargaining chips.

"Are ya gonna keep watchin' her and him?"