DP and I moved in together over a month ago, we've been together for 3 and a half years. I have 2 DC, 10 year old DD and 7 year old DS. He has 4 DC, 13 year old DS and DD, 11 year old DS and 6 year old DS. My DC live here full time and see their dad every few weeks whilst DP's DC live half and half between their mum's and here. Before moving in together our DC got on well and they were really excited to be living together but I think it's taking some getting used to. They've been arguing about everything you could think of and tend to stick with their siblings so it's turned into my DC against his DC. I'm starting to think this was the wrong decision and the kids weren't as ready as we thought they were