Partner says loves me as brother and moves out

[Mumin]

Some questions.
Do you not have money to buy new furniture?
Would you expect to get nothing if you felt you were in the wrong relationship and decided to leave?

I understand this is rough but at this point it is business. If you want to leave things fair then make it fair.
MY suggestion, find the things that you REALLY want to keep and then decide a time where you go through all your things of value and decide who gets what.
IMPORTANT! Agree on a way of valuing things before you do it.
Typically value is higher than second-hand-market-value.
Until that time also do as much reading as you can and we will help you along the way to prepare.