Donnie was your boyfriend. He was a scientist and inventor. He was a smart one too. He’s a calm and loving dude to you but more sensible and rough with his brothers. Donnie was in his lab, working on something, He then heard a knock and got annoyed, thinking it was one of his brothers. He opened the door and saw you. His annoyance faded and he was happy again. “Heya, babe.” He smiled lovingly at you.