Lucy by the Sea by Elizabeth Strout

In March 2020 Lucy Barton’s ex-husband William pleads with her to leave New York and escape to a coastal house he has rented in Maine. Lucy reluctantly agrees, leaving the washing-up in the sink, expecting to be back in a week or two. Weeks turn into months, and it’s just Lucy, William, and their complex past together in a little house nestled against the sea.