We just found out from SS that BM has/is having an emotional affair with her married boyfriend, the one she left BF/SS for, got dumped, came back and wanted her son back, was mad that SS and I got along.  From what we understood was that he got back together with his wife, and wife demanded he end things with BM, and they move away. During the custody battle, she admitted to leaving BF/SS for a married man, but said she left him because she wanted to be with her son.  The real reason was he went back to his wife, but when my BF tried to tell his lawyer, he did his imfamous "No one cares" speech...SS told us that BM and her married boyfriend are calling each other often, and once he heard her BF say to her, “I gotta go, (Wife’s name) is pulling into the driveway.” SS said that he, BM and her BF chat on the phone, and he is involved in their conversations.  (I know in the past when I was in SS’s life he told BF that BM MADE him tell her that he liked her BF more then she liked me).Totally Ridiculous!  This whole time with this custody battle, her constant harassment, her calling me a whore, causing major issues, $80,000 in lawyer’s fees for BF, keeping me away from SS and THE WHOLE TIME she was back with her married boyfreind, while his poor wife has no F'ing clue!!!!!!Ridiculous! How convenient that SS tells BF NOW. How convenient….