I am quite close to you as I am near Milton Keynes!!!!!
If YOU put in the call to the police because the violence is towards you then it would be your W that is removed. The police only remove the violent S for a short while generally,whilst things calm down, and then the violent S generelly has access back to the marital home.
In the UK it is VERY hard to get one S or the other removed, so stick to your guns and stay there. One of the main reasons for staying is that you may lose some of your right to ownership of the property if you move out and you may be seen to have abandoned it and some of your responsibilities.
Over here, (in the UK), they are starting to take violence against men much more seriously than they used to.
Even if you don't call the police you need to keep a diary and document everything.
Avoid going to RELATE if you are looking for marital advice as they tend to just go straight towards helping you split up rather than mend the M.
It does sound quite like your W may have become involved to some extent with someone else and it may be woth trying to install some sort of key logger on your PC. Puppy is the person on here to ask about that.
I shall check back up on you later.
Saffie me 46 H 46 M in 1986 D20,D18,S16,D13 H's A 01/05 to 07/06 H recommitted to M 07/06 renewed vows 09/06 Going from strength to strength
