Complex sentence: Mercedes McQueen (Jennifer Metcalfe) manages to uncover the money, which is insufficient, in order to repay Davey, leading to him leaving with satisfaction as Jacqui promises to do a favour for him someday.
Split into simpler sentences: Mercedes McQueen (Jennifer Metcalfe) manages to find the money in order to repay Davey. Davey leaves with satisfaction when Jacqui promises to do a favour for him someday.