Left the ball in his court?

Boyfriend started pushing me away after many years together. Stress and pressure caused it o think and he just blocked me out.
We have broken up but I wanted to talk through it but he just wouldn't speak to me, just kept saying he felt nothing and went into a man cave.
I told him I would leave him alone and to let me know if he wants go chat. Nearly half way through no contact and nothing. Am I doing the right thing leaving him alone?

Left the ball in his court?
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