IT’S BEEN BRUTAL FOR HER DAUGHTER

Despite her issues, Heather “has always been a good mom,” notes a source. But Mom’s erratic behavior is hell for Ava — her 20-yearold daughter with ex Richie Sambora — to watch. “She’s disappointed,” says an insider. “Ava and the rest of the family are at their wits’ end and have come to expect the worst.” Still, Ava would never stop supporting her mother in her time of need. The Instagram model even made a point to spend Mother’s Day with Heather after the actress got out of rehab in May. “Ava loves her mom,” says the insider, “and really hopes there’s light at the end of the tunnel.”