Can you be separated and still live together?

Q: Can you still live in the same house but be considered separated?

A: Yes, the key is not where you reside but what kind of relationship you
have. If you have stopped acting like a married couple - going places
together, sharing things, doing thins for each other, making plans and
decisions together, etc. then you may be separated even if you continue to
reside in the same house.