When the university's badboy is your neighbour and you love.....

About the story:-
She loves troubling him and spending time with him. With time being neighbour they both have found a very strong bonding together. Though somewhere they both love each other and appreciate each other's present it haven't confesses yet. Later she noticed something which made her shock as anything. Her dreams got shattered and all her holes for crashed?
Does he really love someone else?
How did she not notice that?
What turn will take the life of two friends who love each other but haven't confessed yet?