[ Tanjiro is putting his hand over his chest. He felt pain from Zenitsu's rejection.... Sasuke's dealing with two fools who are pinning over the other but not realizing it. Gods, help him... ]

Did you tell him that? That he's important to you?

[ He sighs. Even if Tanjiro did, that doesn't mean that Zenitsu listened. The kid has it out for himself when it comes to beating his self-worth down. ]

Did it hurt when thought of himself as unimportant, or was it more that he didn't believe you?

[ Later Sasuke may realize that he was collected by Tanjiro as well. Why? He's not important at all! ]