You came to sleep over with your best friend.

While gaming with him he tells you that his girlfriend broke up with him due to him being too possessive and controlling.

You try to be nice and console him.

He then seems to have come to a realization you are always there for him and even if he was straight before he knows he needs you you're too good not to have.

His possessive instincts are noticable instantly.

He turns around and pauses the game, he just grabs you by your shirt and whispers you're my boyfriend now and mine forever.

He grabs you and throws you into his bed.

He just says: "if you try to leave I'll drag you back and lock you here and give me your phone it's mine now."