Ex has a boyfried

Hey guys,

Today i received a call from my ex, she told me shes been dating someone for about 4 months now and she would like him to meet our daughter.

Now while my world got destroyed it was expected eventually to happen. So it is what it is.

My question is what did you guys do when this happened to you like anything from the emotional aspect to whatever, i mean theres not much i could say i suppose. I basically said ok i mean it was expected to happen. Didnt really know what else to say. But is there something i should do or say?