My boyfriend hasn’t been sleeping and plays video games all day. Maybe he’s sleeping on the couch or is it mental illness

I am now partly convinced that this dude is a robot. Just kidding, but we moved in together a month ago and his job is suppose to start by December so everyday he plays video games. The thing is, from when I’m up to when I go to bed, he’s playing video games. Sometimes I wake up during the night to pee and he’s still playing video games. So when I wake up for the day, he’s still playing video games. He drinks Nos energy drinks all day like up to 8 of them and unless I cook something, he won’t eat. He also takes smoke breaks and barely drinks any water. He hasn’t showered in almost 2 weeks or if he has, I haven’t noticed. So I’m a little concerned like dude are you snoozing on the couch cause I know this is not normal. Recently he has been on edge and thought some cars were following us or thought the people who would kill him in the game were looking at him through the window and that’s how they knew his moves. So I wake up and he’s covered all the windows with sheets so no one can look in and see his moves. So I buy him a guys vitamin one a day and he told me to eat it first and I said I can’t cause it’s for guys. He took a small bite spit it out and said he’ll pass. He won’t eat the food I make him or will tell me I need to eat mine and his first. Like dude I’m not going to eat that much food. Today he went to get more NOS and now he’s saying someone has poisoned it cause it tastes different and how whoever did this probably has been watching him and knew he buys all these cans. There was a trail of ants leads to his new can of NOS and at first he said see, it’s poisoned then he said the CIA made these ants and sent them to spy on him. I threw out the NOS and cleaned any spills and he said see now they’re gone. So he bought another pack and once again someone poisoned it. Now he’s talking about how the food I bought today was specially poisoned just for us. Then he said the government killed my grandma. She died 2 years ago of old age and this kinda really put me off. So now I’m on edge and annoyed and haven’t eaten all day. He was living with his family before me and I honestly don’t want him living with me anymore cause I’m scared