Family question cousin. ?

 I know I should talk to my cousin about this. But

 I've been thinking  about this for a while me and my cousin  are super close. He always comes over Friday Saturday to stay and also Thursdays. For a while I just wanted him just to move in with us and I've been asking him and he's said that wouldn't be a bad idea. The thing is I still want him to but now I just don't want my aunt because my uncle passed away a few days ago due to covid pneumonia 😭. I don't want her  to feel alone she still has other son that lives there but I just don't know. I would like for him to stay here all the time. It just when hes there I fell happy. Especially time like this this is why I wish he was here. Idk what I should do. Whay do you think I should do. Should I talk to him again and see what he says. we do everything together. We go out to eat, we go on vacation every year in August, we have a tradition on Christmas we go Christmas shopping than we go out to eat.  We are so close even though he's my cousin he's like my best friend. And like I said before he's comes over every Thursday Friday Saturday and Sunday. He's doesn't live to to far from me he lives about 45 minutes from me. And we are both in our 20's.