Apparently all the girls she taught on Dance Moms and their parents, including the Zieglers have cut ties with her and distanced themselves since the sentencing.
I've been watching the next part of season 7 which has just started again in America and it seems that the mothers felt Abby was never truly invested in their daughters and only out for her own gain.
I think it speaks volumes that she has very few people in her personal life that she appears to be close to. I always thought she seemed quite disordered but also feel a bit sad for her. She can't even take responsibility for the reason she's ended up in prison.