Object constancy reminds me of "peek-a-boo" played with a baby. They cover their eyes and can't see you so don't think you can see them. Out-of-sight, out-of-mind. Knowing I had a difficulty with object constancy (my T even obligingly said so one session :-) helped me as it is just a symptom and I can accept symptoms, know I don't have to "do" anything about them, can just let them be and help me while I work on the actual difficulty.

The first session my T (who I had seen many years before) left me a note on the front door of the townhouse office, telling me to come upstairs. I "secretly" kept the note in my wallet as she'd signed it and it was addressed to me, etc. and a couple years later, I brought it out and gave it to her and used the whole experience of having had it in my wallet and then giving it to her in session and discussing it, to mark how far I had come. Another good mark was the first time I called her on my cell phone to tell her I'd be late because of traffic/an accident (instead of just being 5-10 minutes late). We discussed that and how, before, she'd had to "worry"/wonder if I would show or what, even though I never would not show (therapists use to call me if I was late/didn't show, knowing there was something horribly wrong). I had thought of her for the first time, how she may have wanted to know, not just how it would relieve my own anxiety about being late?