Birthday's

I just got done talking to the Ex about birthday parties. He said he would try to come if I let him. Told him yeah because I want the kids to have him. Told him that I didnt want HER to come. He tried to tell me that he would need help on the road, and that I was going to have to accept her since she was a part of his life now. Will I ever see her as someone other than the woman my husband cheated on me with? I do not want her at my kids parties. But I also know that she may be around for awhile. I really hope that she breaks his heart and walks away as soon as they return stateside. I would have an easier time with him dating anyone but that W***E.