Complex sentence: After Mr. Forman died of cancer, the storylines of the comic strip he helped created become more feminine and "touchy-feely" at various points in the storyline and dealt with in-laws, weddings, emotions, and thus alienated many older male viewers.
Split into simpler sentences: After Mr. Forman died of cancer, the storylines of the comic strip he helped create become more feminine and had "touchy-feely" parts at various points in the storyline. They dealt with in-laws, weddings, emotions, and thus alienated many older male viewers.