When Lambie becomes jealous of Doc's new Valentine's Day toy, Doc diagnoses her with "splitheartitis" and reassures her that no one could ever take her place.
It's Valentine's Day as Doc gets a new Valentine's day toy, a heart-shaped character Doc named Val as the toys are having their Valentine's day party, Lambie feels sad and left out when the other toys started loving Val instead of her as Doc remembers all the love she gave to Lambie as it is up to Doc to cheer up her favorite cuddler, Lambie.
- Val (debut)
- Dr. McStuffins
- Mr. McStuffins
- I Feel Better
- Diagnosis: Split-Heart-itis
- Toys that debut in this episode: Val
- This is the second time Lambie sings the "I Feel Better" song from "The Rip Heard Round the World".
Val: Where's my Valentine hug?
Doc: (Giggles) I can't wait for you to meet my friends, Val. They're gonna love you.
Lambie: Happy Valentine's Day!
Doc: Wow, you did it again Lambie. The clinic looks even more amazing then last Valentine's Day.
Lambie: Aw, thanks. I just can't help myself. Valentine's Day is my favorite day of the whole year!
Val: Love your party, Lambie. But then, I love everything about Valentine's Day 'cause, I'm a Valentine. And it's my day.
Lambie: (softly) But it's supposed to be my day.