My(F27) SO(M31) has a son (stb 5) from a previous relationship that was seriously toxic and abusive. They split 3 years ago, with my SO moving out and finding his own place. She immediately began denying him visitation and called Child services, claiming he was psychotic and a danger to children. He wasn't allowed to see his son for 4 months while they investigated the claims, and then SHE only allowed supervised visits with his parents, who had disowned him for turning away from their religion. Those visits went for another 4 months, before he was finally permitted solo visitation by BM.