he may have sacked her for a host of reasons, i thin kmaybe she told him so home truths and he was in denial and didn't wana admit he was wrong or what he was doing was bad or anything..i think she was a very down to earth , level headed person who had luxuries mj didn't and could therefore tell him the truth of how it is..thats why i thnk they made a lovely couple but it would have been tough too if he was in denial and corrupted by other people..she must have tried so hard and i think he got rid off her, ie they went on a break..he always took her back,just for the kids? maybe but also because he loved her maybe...james brown did that alot too, someone i kno who worked with him said he got rid of band members and singers and said you'r fired but they always came back for rehersals..not saying that is why mj did it but they were very similar beings i feel ..2 peas in a pod almost in many ways