Hello and welcome to the forums! Very sorry to read your story, this is a tough one.
Originally Posted by funbun
Is a case like this common?
I've been here a long time and the only situation I can think of that was even remotely similar is one where the WAS wanted out after being together a few years and married about 6 months. I've never heard of a sitch where the W wanted out immediately after the wedding, that is very unusual. How long did you date before getting married?
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I am considering on separating with W for a few weeks, to give her some space and perhaps with the tension gone she will be able to think things through better. Is this a good idea?
Yes, definitely. It seems pretty clear she doesn't want to be around you right now, so giving her some space would be prudent. Don't call it a "separation", just tell her you are going to give her some space while both of you think things over.