Second Chance Billionaire by Ann B Harrison

Simon Benson made the biggest mistake of his life when he made his first millions and he’s lived to regret it.
Desperate to get Ruby Costello to fall in love with him again, he needs all the help he can get. An invitation to the annual fundraiser Ruby runs for the animal rescue centre she manages seems like the obvious answer. This is his chance to make good and use his money for something that matters to her.
He bids and outrageous amount for a week of dinners with Ruby and she’s horrified. Now he has seven dates to prove they never should’ve broken up in the first place.