Going on a trip?

I've been doing planning for a trip to Maryland for Christmas. My dad invited the kids and I to go there for a day or two and visit with him. In the past, I have only spent Christmas with that man twice in my whole life. This troubles me still, so I couldn't say no. Scott would be staying here and we would be spending Christmas with each other on a different time. This sucks, but I can't find it in me to say no . It will be fun for the kids. They don't get to see their papa that often or their mema Iveta. I'm not too sure what else I can do. I want to go, but it sucks leaving Scott. I've been trying to convince him to come through here as he drives to or from Maryland, but we'll see how that one goes.