Meeting my evil Wife in school,what a big mess! DW

Robert hates girls like he hates cats, however in the new school he transfers to, a new chubby girl will not let him rest, pestering him every time.
Eventually, he falls for her only to find that she never liked him.
How can he accept it? So he works hard and begins to pester her even in her bathroom, he pesters her.
She retaliates by trying every possible way to embarrass him but why does it make him only happy?
Even the whole school is shipping them.
Years later, they find out they were engaged from birth.What then is this lady going to do to robert? Make him go bankrupt?
Find out in this not so long story.