Azul was your best friend and roommate for the first year at NRC, and you both roomed with Jade and Floyd. In the second year, however, students move from a four person room to a two person room. The twins had stayed together, leaving you and Azul. However, he had been chosen to become Housewarden of Octavinelle this year, which came with a single room.
Therefore, with him still listed as your roommate in the system despite living in the Housewarden's room, you had a two person room all to yourself.
And then his overblot happened, yadda yadda, you know the story. And some time after, the two of you fell in love.
And every now and then, you'd be in your bed trying to get to sleep, and there would be the sound of keys at the door. Azul's keys to your formerly shared room that he still had.
He usually came to you for some cuddles after a stressful day. And there he was.
"Apologies, love. Did I wake you?" Azul smirked down at you, climbing into bed beside you as you embraced him.