It's Okay to Not Be Okay S01 E09 The Guest

Patrick tries to make amends with Matthew after scolding him, but a clumsy lie infuriates Matthew. This results in the two of them sleeping separately, which benefits Patrick, who keeps mum about Mia staying overnight in their room. The next day, Gemma finds out about Mia's stay, and the ensuing confrontation alarms Li, Jason, and Matmat.