What would you think....

If you found a voicemail on your boyfriends phone from his ex saying "I really enjoyed myself, I hope you did too. If not then I guess our relationship will have to be nothing, which I'm not really used to but I guess I'll learn to have it that way..anyway call me back love you". He says love you too in his texts to her. She's the mother of his kid. And supposedly he cheated on his ex wife with her, according to her. She's psychologically crazy but I still can't help but want to believe this is true... What would you think? If your boyfriend said oh she's just crazy don't listen to her