Spoke with my mother-in-law for 1st time in a year and about estranged husband, should I listen to her?

You need to ask yourself some questions first about your estranged husband. Why is he your estranged husband... why is he not in contact with the children on a regular basis... The rest of the things she has said..I would take with a pinch of salt. Do not allow her to become involved with you and your husbands problem...it wont help at all.