Isles and Bones went to school togetherThey either got along very well or hated each other's guts
Hoyt was going to rape Maura and make Jane watch.Hoyt had a pattern before he was arrested. He stalked a couple, raped the wife in front of the husband, killed the husband and then the wife, he had no interest in single women or single men, however his obsession with Jane broke his MO for a while, suddenly it was all about breaking Jane anyway he could. He terrorized her, but it wasn't really working, not like he wanted to anyway. And then he met Maura and his original pattern returned. Not only he saw that Maura was different, not the same kind of person he was used to see, but also that she meant something to Jane. Maura meant something important to Jane and Hoyt wanted to break Jane, like he wanted to break the husbands, and how did he do that? By raping the woman they loved before their eyes. Soiling their love with his twisted act. Notice how he was all over Maura while his apprentice was all over Jane? He wasn't going to kill Maura, he was going to rape her and he was going to make Jane watch because he thought that that one act would finally break Jane.
Jane Rizzoli and Maura Isles aren't gayThey are (respectively) Maura-sexual and Jane-sexual.
Detective Barry Frost is The Famous Jett JacksonBesides just being played by the same actor. Like many other child stars, Jet's fame faded with his TV show. He changed his name, moved from North Carolina to Boston and became a police detective.
Rizzoli and Isles survived the events of Revolution.Not only that, but they went on to become a pair of badass drifters, solving problems in various towns that they came across.
The Rizzles subtext will get lampshadedDuring one of there slashy moments, a bystander with ask if they're a couple. The two will just look at each other and give the bystander an unsure shrug.