I Cannot Find a Quick Transmigration Novel I Once Loved! Help!

The male lead seems to be an actor king with a psychological disorder. The female lead was introduced by the male lead's sister, who was friends with her, as a psychologist. The female lead originally had a boyfriend. Later, the male and female leads, the male lead's sister, and a few others went out for a picnic or something. In the end, it seems the two of them broke up.