S1 - E9
Ep 9: The Rules of Sexting
Courtney and Nick dated for over a year, and in that time Courtney's daughter grew attached to Nick too. So when Courtney discovered that Nick was inappropriately texting another girl, she was heartbroken and cut it off without even talking to him. Nick maintains that despite the text he never physically cheated, and makes an accusation against Courtney that could change their dynamic forever.