Steven Universe: Storm in the Room Season 4, Ep 17
Steven spends some time thinking about his mom.
Steven Universe: Open Book Season 2, Ep 2
Steven takes Connie to Rose's room so they can make up a different ending to their favorite book series.
Steven Universe: Rose's Room Rewatch Season 1, Ep 19
Steven's Gem unlocks the old room of Rose Quartz in the Temple, which appears to grant him anything he wants.