Complex sentence: After Peter (now played by Ben Hardy) begins to worry about Ian's behaviour, he calls Jane who then returns to Albert Square to the shock of Ian, who is about to propose to his current girlfriend Denise Fox (Diane Parish).
Split into simpler sentences: After Peter (now played by Ben Hardy) begins to worry about Ian's behaviour, he calls Jane. She returns to Albert Square just as Ian is about to propose to his current girlfriend Denise Fox (Diane Parish).