Woman swinger

It's set in the 70's, her name is Linda, her husband finds out she is going out with other guys, and at the end she is having *** with a little Italian guy. Some phrases I remember are, "Sure, dear, take a look in my purse." "I'd like to come closer but these bucket seats won't permit it." "Best you stay there " "You're turning into a **** ****." "You shut up. You have no right to talk" Linda screamed and slugged him across the shoulder, then cried. She was afraid he would hit her back .

To be specific, the story is about a woman whose husband discovers her swinging lifestyle and subsequently leaves her. She continues to have fun.