She’s deranged - it’s full-on narc rage at this point. She’s furious with Ioan because he left, and she can no longer control him. Him leaving wasn’t in her script, how dare he, so she’s desperate to get him back. That’s why she’s always trying to engage him (hijacking her daughter’s calls, hanging on to his clothes), because she’s so deluded she thinks that, if only she could talk to him, she could browbeat him into coming back.
I can really see why he’s only communicating through the Wizard. And yet she only gets worse - she’s a vicious bully and she’s poisoning her daughters against him. I actually think he must be going through hell with all this.
Not only that, but I think it’s inevitable this will damage his career. If a TV company is doing publicity for a new show, they won’t want it being overshadowed by the lead actor’s chaotic personal life. Especially when Ioan is not that big a name and there are plenty of others who could take his roles.
The chances are that the divorce will happen, and the (heavily mortgaged) house will be sold, and Alice will not get a great fortune - because the money simply isn’t there. She will have to live a very ordinary life, no more red carpets. So her bitterness will only get worse. Imagine what she’ll be like if he ever re-marries, or has more kids. God help him.