I have been in a relationship fir six years. We moved in together the end of October. Everything was going great. Thanksgiving day my bf grandpa passed away. That night he slipped out saying he needed some thinking time. Came back acting very different. I assumed it was grief and gave him space. From that moment on he has become completely different. He is very distant and isolated himself. Hw would disappear for hours. Then hours tuned into not coming home at night. Then not coming home days at a time. When he is home he is very in his own little world. He spends a great deal of time in the bathroom. Stays up all night for days at a time. Always working on something, painting, or drawing. I talked to him about how I was concerned and he said he needs space to deal with things. His behavior has become very odd and disturbing. I now have cameras all over the house. He keeps telling me our WiFi isn’t secure and showing me some app that shows different devices that have logged into our secure network. We have had several conversations about the disappearing and how he is leaving me to worry. He seems very out of touch with reality. He keeps getting new SIM cards for his phone saying something is wrong with it. He now has multiple phones which he spends hours on. He will be gone for two or three days and come back and sleep for a whole day. I am pretty sure he has lost his job that he has worked for 14 years, but he denies it. When I confront him it’s always some bizarre story about the motorcycle that was stolen from in may and how he took off work because the police need him to help find it. I’m not sure what I am dealing with here.