DP and I had plans to move in together next summer, when his daughter leaves primary school. They're planning to move into my place. Or so I thought...we've been discussing plans for months, saying 'when you move in....'. Then today we were having a minor disagreement about something and he suddenly pipes up with 'my moving in is dependent on how Christmas goes'. I feel like I've been lied to, been blithely making plans and he was going along with them. I feel both angry and upset and I don't know what to say to him.