Your readers came through so fast with my last mystery I thought I’d try another. A friend of mine gave me a romance novel for my birthday in either 1985 or 1986. I cannot remember the title. The protagonist is a young tennis prodigy who for some reason ends up at a rich man’s island paradise, I think in or near Bermuda. She wants to leave the island but for some reason the planes are delayed. There’s a May/December thing going on. She learns that when she was just starting playing tennis he was winning Wimbledon. She goes shopping around the island and some (him)? gets her a sexy wrap dress/jumpsuit as an “Easter Egg” present. Then a hurricane comes and they are stranded in the house together. The rich dude’s valet makes finger foods they can eat when the power goes out, which of course it does, and they have a romantic hurricane interlude. I can’t remember how it ends but since it’s a romance novel I’m sure they end up together. I feel like the cover was white…maybe Harlequin romance?
Lost Classics of Teen Lit: Name That Book! 