In the exclusive sneak peek from the Tuesday, Feb. 25 episode of This Is Us, "Clouds," Kevin visits his mom after learning about her health struggles from Randall (Sterling K. Brown) during the Big Three's trip to the cabin.
"You look great," Kevin tells her.
"I do?" Rebecca asks in surprise.
"Yes, you do! Wonderful, actually," he says.
His enthusiasm betrays him.
"They told you, didn't they?" she asks. Mother's always know, and Rebecca gets the answer by simply looking at him and saying, "Kevin."