Going Wrong Ruth Rendell Mysterious Press 1991

TILL DEATH DO US JOIN...Ever since they ran with the same London teenage gang Guy Curran has loved Leonora Chisholm passionately.

He was a slum kid, and her parents lived in tasteful Kensington; she went to university while he made his jet-set fortune dealing drugs and sentimental, mass-produced art, but he's always been good enough for her, and once they were lovers.

Of course she'll marry him in the end he's been calling her every day for years and buying her lunch every Saturday. Then Leonora tells him she's engaged to some pasty-faced intellectual.

But Guy knows she's being brainwashed by her family and friends, from her snobbish brother and her mother with pointy silver fingernails to her so-superior feminist roommate. Leonora and he belong together...

If he can't have her, he'll die or someone else will.