Oh The Possibilities, they all come down to one

Gumball is troubled over many things, one of them being love. And when he tries to confess, what happens if he makes a huge mistake for not only him, but the only person who ever knew, Flame Prince. Will they try their best to change this ending, or will they never try and leave the rest at this outcome.
Main pairing: MarshallxGumball. Warning: Yaoi.