Heartwarming / Doc Rat

• In the climax of their courtship, when a mugging pre-empted Ben's planned proposal and led to the revelation of the secret that Ben had a lingering young marriage he was trying to end, Daniella realized that was why he was reluctant to become lovers. But Ben had a different idea on what the term meant:
  Daniella: I see, now. That's why you didn't want us to become lovers.
  Ben: Lovers? We are lovers! Dani, I'm in love with you! You're in love with me! We laughed together, screamed together, faced a knife attack together! My life belongs to you! Totally, utterly, and for all eternity!
  Daniella: But Ben, you didn't seem to want to—
  Ben: We're past the point of needing a session in bed to make it official! We're already there!
  Daniella: Lovers?
  Ben: Lifemates.
  Daniella: Lifemates.
• Not long after that drama, Danni's receptionist, Siobhan, relays a message to Ben's receptionist, Gizelle:
  Siobhan: Our dentist has a message for your doctor: "If we work hard together, there's nothing in the world that can't be fixed."
• Ben taking Daniella to meet his father, Winston, not long before their wedding. It was the perfect time for his father, who suffered dementia, to have an exceptional moment of clarity, leaving quite a positive impression.
• Danni's former lapin boyfriend ritualistically apologizes for the pain he caused her all those years ago, and she forgives him.
• When Ben returned from maternity leave, Pungeon Master Wilbur gave him a gift for his children in his own unique way. He came in complaining of a rattle in his chest, and Ben found an actual rattle in his jacket, with a tag: "For Rattling".
  Wilbur: There you go: it's for your rattlings! Ha ha!
  Ben: Wilbur Fuzz... I've missed you.
• Katherine's late-night phonecall to Simon/Quarrydog is part this and part (the good kind of) Tearjerker.
• Following up on the above example there's Quarrydog's reworked ad. Crosses over with Moment of Awesome because Quarrydog put the plan and a script together in one night and got people who were literally trying to kill each other the day before to sign on.
• After the reckoning with his biological father and making amends with his mom and Brayden, Jarrad has an idea to finally solidify their family life:
  Shirley: They're going to take your tonsils out, Jarrad. But if you're a brave boy, I'll give you a present. So—what do you want?
  Jarrad: I want you to get married.
  Shirley: Wha... wha...?
  Brayden: Y'know, Shirl, he's got a point. How about it?
  Shirley: Wha...? Uhh, I mean, well, yeah no sure.
  Brayden: Is that a yes?
  Shirley: Uhh... yes.
  Brayden: Done.
  Shirley: Done.
  Jarrad: (thinking, smiling) Done.