The bus boy

Ebony catches the bus to and from her university, but she realises a boy does as well... in a different bus, in a different university.
But every time she passes the big oak tree next to the bakery, she sees this boy, always in the middle of the bus, always at the window, looking out.
He realises this as well.
And they soon fall in love.
They show messages at the small passing by holding up a piece of paper.
Will they ever find somehow to meet?