Ian waited for Mina to return to his mansion, but after midnight, it became clear that she was going to spend the evening with her friends. Drax had called and told him that Mills was also staying at the apartment, which told Ian that the woman did not feel comfortable leaving without Mina.
Ian was aware that since Drax and Mills had gotten back together, she rarely stepped out of the Staton home for longer than she needed to; so, for her to sleep outside of the home was serious. He also knew from conversations with Mina that she often cooked for her friends, so he made the arrangements for breakfast to be sent to the apartment before he too went to bed.