Heartwarming / River

• River going to the recording studio at Stevie's behest to record "I Love to Love."
• After River discovers Frankie's parentage, he takes him to an outdoor swimming pool, where they (plus Stevie) take a nighttime dip.
• At the finale, River finally musters up the courage to tell Stevie he loves her. Followed by them dancing and singing in the streets. When he returns to the car, she reciprocates, before peacefully fading away.
• After previously turning him down, River agrees to join Ira and his family for dinner. Whilst grinning at and playing with his baby no less, causing his therapist and boss to smile and laugh at him respectively.
• Anytime Perpetual Frowner River smiles.
• River's interaction with Erin in his apartment near the beginning of the first episode, before you realise she is dead. Even after she fades away, she returns briefly in the last episode to wish him luck before his final date.