Now, Jane isn’t a series that shies away from current issues — among them political advocacy, women’s rights and immigration reform — but “Chapter 31” introduced a gay character in a way that pushed the series further than ever. The setup? Rogelio’s mother, the gorgeous, fabulous glam-ma, Liliana De La Vega (Rita Moreno), has arrived on a visit to the family but sans Abuelo. She’s made up a story to explain his absence to Rogelio, but Jane isn’t quite buying it, and when she presses glam-ma for the truth, it’s comes in the form of some surprising news: Her grandfather has left Liliana for a man, effectively ending their marriage of 47 years.