I think it is ok to have occasional contact if time is passing and you are largely leaving your spouse to it. However, remember that NC or dim contact is largely for you, and if you have a little contact, do so with no expectations.
I occasionally drop my H a text, but only once every couple of months or so. Next month it is his B'day, so I'll drop him a text then. I also wished him HNY - but it's minimal and pleasant from my end. He pretty much always responds promptly and pleasantly, and that's all...
Hope this helps and take care xx
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus