DS stays at his dad's for a night every week, has done for ages now. We are both in new relationships, his more recent than mine. I was incredibly considerate of his feeling when mine began (he was jealous & happily told me so). My bf was introduced slowly to my son and after quite a while, as I didn't want to confuse him and wanted to make sure I definitely wanted to be with bf. Ex on the other hand introduced his current gf to ds one weekend, as she joined them on a holiday that was supposed to be just him and ds.
He gets one night and the next full day with ds a week (plus other visits), and he now has gf there every time too. Ds has told me he wishes it were just him and his dad, but ex doesn't want to hear it. It upsets me that he doesn't want to give ds all his attention as gf spends all day with them too.
Ds came back today and told me that he stayed at daddy's gf's house last night. Ex and I had discussed it before and I said that it is not something I want to happen right now. I am angry that he didn't tell me about it. Fuming. He says that ds is supposed to stay with him, wherever that may be. I disagree. I am his mother and want to know where he is staying. Ds is nearly 5.