You never know with Phineas and Ferb!

she loves he

poor isabella,PHINEAS,opean your eyes and see that she loves you!!

Duuuh Phineas..allthough it would be kinda funny if she would be with Ferb..hahah freaken hilarious!! =D XD ...at least maybe Phineas would get jealous and fight for her..oo that would be cute...but yeah like that's ever gonna happen...=D ..though I still think it will be Phineas..=)..but u never know..

PHINEAS BECAUSE HE SEEM TO HAVE SOME FEELING OF LOVE ON HER AND ISABELLA..WE KNOW HE DREAMS WITH PHINEAS IN PHINEASLAND:)

i think so.... in teh episode where they traveled to teh future... isabella was like " that means im gonna marry Phineas " " or ferb " ~ Phineas. then look at ferb... he seems to like her and vanessa

Okay I'm just gonna tell you to do one thing. Think back to your first crush and tell me if you want to marry them... FERBELLA RULES!!! :D

I totally have an idea. When Isabella is engaged to Phineas, Doofenshmirtz turns Phineas evil, and so Isabella is dating Ferb for a little while, and Isabella and Ferb turn Phineas back into the good person he is, and Isabella says that she loves Ferb, but she belongs with Phineas. The End!