Complex sentence: Julie returns to Wisteria Lane for the summer in season six to help her mother prepare for her and Mike's second wedding, during which time she forms a relationship with Danny Bolen (Beau Mirchoff), who has moved in across the street with his parents.
Split into simpler sentences: Julie returns to Wisteria Lane for the summer in season six to help her mother prepare for her and Mike's second wedding. During this time, she forms a relationship with Danny Bolen (Beau Mirchoff), who has moved in across the street with his parents.