Ex got married today....

Katie

So my ex and I have been on good terms for about a year now. My kids came back from his house and informed me that he got married today without them present. My daughter (who is 6) was very upset that this happened. I am happy that he has moved on because I have too. But what i'm struggling with is trying to explain to my daughter why her and her little brother weren't there. She feels like he picked his new wife over them. She has already come to with certain issues she has about his new wife. And she has expressed it with her dad. He has not acknowledged her. Help me out ladies!!! How do I help my little girl understand or at least feel better?? My heart breaks for her.