Should I stay or should I go now

[Cnfused]

Looking for some advice... My wife wants me to move to our lake house to give her some space. We have had this conversation before and I said our son we never see me walk out the door. I do take him with me if I go there on the weekends. This has been on going since for over a year. I had said before, "If you need space then you should go." Becoming wore down after months of this.

I recently said I could if we could figure out a schedule with me having 50/50 custody. I will not leave unless we can agree on that or something very close. The longer I've stayed at home the more distance it seems to have created.

Sleeping in separate rooms, "haven't loved you in a long time", told MC she wants a D two months ago. It feels like she is just waiting for the right time.

Not sure if I should be pro-active or reactive.

I'm not sure what to do, but thinking about filing for legal separation. Should I just continue DBing from M home or let her really see what it would be like if she wants a D.

I know financially she would notice the change... should I continue to help her with that or let her see the outcome of her choice? If she decides to follow through.

Any advice from someone who's been there would be great.

Thank you all for your help!