I think it is disingenuous of her to describe the space as your collective space. My therapist sometimes does this and I correct her. It isn't my space, it is her space. It's her work space and she invites clients into it. For the time that clients pay, the space might be shared between client and therapist but that is a very limited frame. If it is my space, can I decide what rug is in there? Can I declutter it? Repaint? It is ludicrous to suggest that the client has any meaningful ownership over the space. This is accentuated in my case because she works from a room in her house.

Anyway, I guess this is part of the risk of gift giving and, more broadly speaking, the risk we take when we offer something of ourselves to someone else. It is potentially very painful, especially if we have relational wounds. At least she is being honest with you, even if you don't like what she is saying.