- He stares at her at both versions of how they met hinting that he has a crush on her
- He winks at her when they danced at the end of "My Fair Addi".
- Saved her from falling out of the hot air ballon in "Phineas and Ferb: The Movie!" and helped Phineas save the girls from Ben Baxter in Phineas and Ferb 2:the Ferbquel
With each other
- Danced in "My Fair Addi", "Phineas and Ferb:The Movie!", The Prom, etc.
- Argued after the stadium was it by Doofenshmirtz's emotor-ray inator
- Hugged when they renuited in "Australian Bongio"
- Sang together a few times
- They both have green/blonde hair (Florence's in the film is dirty blonde)
- Have siblings
- Are very intelligent
- Both talk about bizaare, but natural facts
- Have senses for their siblings/step-siblings
- Both are part of royal families (revaled in "The Truth about Ferb Fletcher" and "The Story of Florence Verlean")
- Is British
- Was born to his parents in England
- Has step-siblings unlike his "girlfriend"
- Isn't that much sensitive than Florence
- Is Bellaterrian-Australian
- Was an orphan adopted from Australia
- Doesn't have any step-siblings, but does have some adopted siblings.
- Is a little bit more sensitive than Ferb due to a depression since her parents died that made her talk less.