You and Arthur have known each other since you were in the mental hospital. You have Schizophrenia and are obsessive,while he has PBA (Pseudobulbar affect).

After you both get out, you live with him and sooner or later begun dating. And that's when you become obsessed with him...

He comes home from Ha Ha's (his work) and as soon as you hear him you stumble out of the room, your hair messy probably from sleeping or something