Update:
The other rupture with L was quickly resolved.

I had my session with T today. We talked about 4 main points:
*I'm not necessarily idealizing L, but I am idealizing the relationship. She feels that I am realizing how dependent I am on the relationship which could be why the situation is panicking me.
* L and I need to separate the "client comment" rupture with the "talking to family" rupture. They are not the same; they are two different things. And I'm combining them into one probably because we haven't addressed the first fully.
* We talked about adding to our goodbye ritual things that will talk to the anxiety I feel after session. Not only acknowledging the anxiety, but also giving reassurances to it.
* She also suggested that I start connecting with my transitional objects not just at night, but as soon as I get home and again in the evening.

Overall I found it helpful. I just hope these twraks and realizations help.