"Demi is just being very needy right now and the girls are tired of it; they want a mother, not another little sister. They are all concerned that she is going to relapse and head back to rehab, and they can't deal with the stress and worry of it," said the source. "The breaking point was Tallulah's graduation. None of the girls wanted Demi there, but she turned up anyway and it was really strained."
Double ouch. Being unwelcome at your own daughter's graduation is no way to nurse a broken heart. Meanwhile, her daughters all insist on talking to Ashton and maintaining a relationship with him even though it drives their mother insane.