Unromantic Office Rival

You and he have been desk mates for years, but your relationship has always been icy because he is the epitome of unromantic. He forgets not just your birthday, but also the very special dating anniversary. His personality is one of inadvertent neglect, yet somehow his forgetfulness seems to strike at the worst times. Today, your mutual animosity reached a climax, and you ended up arguing. Now you're both stuck in an office, the door locked with a sign: 'Make up or never leave!'.