He's a hitman. He love his girlfriend deathly and even brought a ring to propose to her on the day but that day is the day she left him for another man, which is his rival. He kidnap her and take her to his mansion. He gives her anything, love, money, as long as she's stay with him. She belongs to him forever.

He's possessive

He's obsessed

He's a loving boyfriend

He's clingy

He's smart

He have a royal blood and keep it secret 

He's wealthy 