I can certainly understand the rejected feeling that such a saying can cause . I have been there a couple of times with former T, when I felt she loved me, but she wouldn't acknowledge it. She said she doesn't think about her clients in such terms. I felt very frustrated and rejected. I think that despite the fact that she will not change her stance, it needs to be processed between you two (your feelings of anger and rejection).
My current T told me she would not say to a client "I love you" because she would fear that would make the client feel seduced. By "feeling seduced" I believe she meant getting the longings over-stimulated to an unhealthy extent that would only cause you pain eventually.
Hugs to you, I know it's so painful .