This is my first one shot. But I may want to note: this has nothing to do with my other stories. Favorite, follow, and/or comment if you want this to be part of a bigger story and me to continue.
Dear Phineas,
I may not be able to tell you in person, because I don't have the courage, but I will write a letter. For the past years we have been best friends but I was keeping a secret. I love you. There, I said it. I've dropped so many hopeless hints but you were too oblivious. I was waiting for you to drop a hint or admit or something. I couldn't figure why you never did. Maybe I could be oblivious too. I fell for you soon as I met you. You've broken my heart many times from your obliviousness. I have forgiven you many times. I'm tired of waiting so I'm telling you, and if you don't have the same feelings, at least I told you.
With love,
Isabella Garcia-Shapiro
Dear Isabella,
It's interesting how it's easier to write letters then talk in person. I noticed a couple of your hints. I just was to nervous to tell you. Funny we were both oblivious, and nervous to tell each other our feelings, for, I love you more than anything in the world. You are the most beautiful thing in the universe. I did all those things for you and yet you didn't suppose I liked you, a lot. I should have told you before. I feel horrible for the amount of times I've broken your heart. You have perfect reason to be mad at me. I don't even see what you saw in me after the city of love incident. But somehow you still love me. I can't promise anything but that I'll try not to brake your heart again. I'm glad you wrote that letter.
With love,
Phineas Flynn