It used to happen in my therapy all the time years ago.
My long term t would match my silence until I told him his silence felt hurtful, that in those moments I feel stuck and need help pulling out of the silence.

I think my current t would gently say “you seem quiet today. I wonder what is going on for you and how can I help you talk about it?”

I never did like the stare down approach where the t just matches the silence.

I hope you gain back trust with t fuzzybear. It’s hard work to get it back once it goes away but it can be done.