The thing is that Steve really doesn't get it. Whatever it is, he doesn't have enough to go on to even begin to guess. He hates feeling so out of control. How is he supposed to fix a problem when he doesn't know what the problem even is?

He sighs and lets his sponge drop on the wet tile so that he can crawl on his knees to the edge of the partition and actually look at Bucky.

"You don't want to tell me what it is?" It's possible that Steve is at least a little aware that he's got a kicked puppy look on his face. He's not trying to be manipulative, but he can't really help wearing his heart on his sleeve like this. It goes down to his very core.