Wow the opening to this could have been written by me!
Solitude in your 30s (particularly as a DINK or SINK household) is dangerously addictive.
No need to leave the house… but it does lead one to feel disconnected more broadly over a prolonged period.
They’ll have to pry WFH out of my cold, dead hands; but I must say, the times I do travel to the office and spend a day chatting with people are incredibly energising (though also very unproductive!)