Kim Basinger has called for ex-husband Alec Baldwin to address his "unstable and irrational behaviour" to save his relationship with their daughter.The actress - who denies leaking the tape of an answer phone message in which Baldwin calls their 11-year-old daughter Ireland "a rude little pig" -said he must stop "his on going aggressive behaviour" if he wants to share custody. A statement released by Basinger's representative said: "Everybody is always asking why this custody battle has been going on for so many years and now they have the answer."The issue is not about Kim or the alleged alienation that Alec constantly refers to. It is about his on going aggressive behaviour.""Kim did not release the voicemail but the message was not sealed under acourt order."Kim's sincerest wish is for him to finally address his unstable and irrational behaviour so he, at some point, can potentially create a relationship with his daughter. Until then, Kim will continue to protect and safeguard her child's well being as any parent would."Basinger has since hired a security guard to protect Ireland in the wake of the Baldwin's angry message.Meanwhile, Heather Mills - the estranged wife of Sir Paul McCartney - has spoken out in Baldwin's defence. Mills said: "It is wrong to speak to your daughter like that, but I am not someone to go, 'Ooh, that is terrible, and we are all perfect, it's all wonderful.'"I would never speak to my daughter like that, but what you have got to remember is that his daughter lives with Kim, and we have no idea what goes on behind closed doors. I respect Kim, I respect Alec for his incredible animal rights campaigning, and we have no idea what's going on."You know when you love somebody and it is your only child, people lose it. Forgive him. Don't throw stones at glass houses. We are not here to judge and criticise what other people do unless you are a saint. And none of us are a saint."