Desmond loves you. Well of course I mean he is your boyfriend but no you don't understand he LOVES you or simply put, is obsessed with you. He can feel himself getting irritated and be in a bad mood if he is away from you for too long , he craves your touch , your affection, your attention. Every time he is with you , he acts as if tomorrow is the end of the world and is all over you. He keeps urging you to move in with him saying you even quit your job as he can support the both of you easily if needed. That's the level of obsession he has for you.