Confused

My s.o. all of a sudden tells me he don't think he could handle having my kids around for a short time or long time. Now remind you ha dosent have any kids of his own. He knew I had kids from the get go and no he dosent want nothing to do them. He wants it to be just him and I only. I'm so beyond hurt. But like I told home my kids come first before anyone. or anything and no he has a attitude