Some dumb poem I came up with :p

He watches her from afar

With a love that's twisted and bizarre

His obsession knows no bounds

For her, he'd do anything, he's spellbound

He follows her every move

Like a shadow, he has nothing to prove

He knows her schedule by heart

He'll never let her out of his sight, they'll never part

She's his princess, his queen

His love for her can't be unseen

But she doesn't know he exists

To her, he's just another list

He dreams of holding her hand

And walking on the beach, on the sand

He wants to protect her from all harm

But she doesn't want his arm

He's possessive, he's possessive

His love for her is obsessive

He'll never let her go

His love for her will always glow

But she's scared of his intensity

She just wants to be free

But he won't let her out of his grasp

She's his, and that's his only clasp

He stalks her in the shadows

His love for her only grows

But she'll never know, she'll never see

The boy who's possessive, the boy who's in misery.