Motion
Your answers pointed to activity. Full weekends you can't recall much of, things taken on without room for them, something switched on the moment you walk through the door.
Staying busy after a separation is normal and often useful. Structure helps. Movement helps. The thing worth looking at is the quality of it, and specifically whether the activity is chosen or whether it's filling a space you'd rather not sit in.
The sound going on immediately when you get home is usually the clearest sign.
You may well disagree with this reading, and plenty of men do at first.
If nothing changes here, nothing dramatic happens. You stay fit, or busy, or successful. What tends to occur is that a good deal of time passes and the thing the motion was managing is still there, unchanged, waiting for whenever you eventually stop.
If any of that landed, it's worth a conversation. Half an hour, no charge, and no obligation at the end of it. I'll ask you some questions and you can decide whether talking to me regularly would help.
I'm Trevor. My own marriage ended after twenty-four years, about eight years ago, and I spent a good while in the state you just read about. Now I coach men through this.