There is a lot of confusion between
"object consistency" and
"transitional objects" on message boards.
The former has to do with people, the later has to do with objects.
Transitional Objects: For children, a ''transitional object'' can be a teddy bear, or a security blanket. For long the conventional wisdom has been that, as normal children mature, they outgrow such fixations. And the attachment to blankets and the like after 3 or so was, in the classic psychoanalytic framework, defined as disturbed or regressive behavior.
The connotation has been negative, but
Horton believes the evidence is against that. His work embodies a school of thought among those in psychiatry who hold that such attachments can continue normally: ''The relationship that I'm talking about is vital, humane and essential to development throughout one's life,'' he said.
Object Consistency: I think these pages from Gunderson's text (ISBN-10:1585620165) really help put it into perspective - it addresses the issue of object constancy for a pwBPD and their developing relationship to the
major object (people) in their life.
https://bpdfamily.com/message_board/index.php?topic=70884.msg579575#msg579575