they broke up with Cara because Cara was using drugs, On the night they is offered a house sitting job at the Carson house when they were doing their homework before suddenly the door to the room they were using was knocked on and when they looked at the CCTV it was Cara

“are you on there? whatever is happening between us we can work it out together.. i know you leave me becouse of her” Cara knocking very loudly she clearly broke in from the font door obviously This woman is very drunk