I think you're using the term "going dark" (which has a specific meaning in DB which doesn't describe what you're doing) to mean "detaching" (which also has a specific meaning in DB that sounds a lot like what you are doing).

Detachment is good. It's necessary to survive this and to become someone only a fool would leave. You are doing a good job of learning to detach.

Do what works for you.

Adinva 51, S20, S18
M24 total
6/15/11-12/1/12 From IDLY to H moving out
9/15/15-3/7/17 From negotiating SA to final D at age 50
5/8/17-now: New relationship with an old friend
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Happiness is a warm puppy.