Isabella likes Phineas but she is very unaware if Phineas likes her, as in the recent episode, "Summer Belongs to you," Isabella was continuously trying to get together with Phineas. In the Episode, " Summer Belongs to you," The only romance they had was at the end when they were dancing with eachother and everybody else.
As well as, as previously shown in the Episode,"Summer Belongs to you"(SBTY), both Jermey and Candace thought of eachother as Boyfriend and 또는 Girlfriend but neither side thought that the opposing side felt the same way.
So unoffically (very unofficall), Isabella and Phineas. And offically Jermey and Candace
Most officially of P&F couple is Jeremy and Candace, like it said in 'SBTY' they already in a Boyfriend and Girlfriend relationship also it had been seen they were 키싱 in the last scene,
The unknown yet 또는 not officially couples are, *Phineas and Isabella; might she had a crush on him but they most officially shown as good friends *Ferb and Vanessa; I know Ferb had a crush on her for the first time he met but I think it's impossible for a 10/12 years old boy relate 더 많이 than 프렌즈 with a 16 years old teengirl, but Vanessa already have a boy she likes...