The Jade Girl

Why did Stacey resent Alex Lines so much when he came to live in her family home for a few weeks? She wasn't, after all, interested in him or in any other man; since her darling David, her childhood sweetheart and the man she had been going to marry, had died, there had never been anyone else, and there never would be. And Stacey only resented Alex when he told her firmly that it was time she stopped living with a memory. So why was she so uneasy, now, when Alex began to show definite signs of interest in her attractive, still young mother?