So my partner moved himself in last night… he literally walked in with his bags packed and said he’s moving in. Made himself at home. I was shocked, because we’d not had the conversation yet about him moving in. He just invited himself in. He used to live at his parents. He’s moved into my own house/mortgaged and said he is happy to split the bills and pay his way. What do I do? Because I’m not sure I feel ready for him to move in, and I’m shocked that he’s just come on his own, saying it is a “surprise” for me…