Of course not. Going dark is to shake it up a bit to save it.
This won't be forever, but if you don't try this, you may regret it later.
The way you guys are going along now, with her playing the blame game, and you always playing defense so she won't "hate you" is not effective.
When you stay in contact, hoping she will come back, trying so hard not to make her mad, accepting crumbs, you are not helping the sitch.
In fact, I think that couples who do this are just letting the R peter out, dying under it's own weight. She will keep beating you over the head until she gets bored and leaves anyway.
Go pitch black for awhile. It's a good thing right now.