Best Enemies Forever by Olivia Hayle

Marrying the man I hate is bad enough. But falling for him? That’ll be the death of me.
Gabriel Thompson and I are like oil and water. Our New York families control two of the nation’s largest companies and the business rivalry is decades old. We’ve carried the torch ourselves since childhood.
But then we bump into each other after a conference in Vegas. Drinks are involved, and he utters the three little words I can’t resist. I dare you. The next morning we wake up hungover, late, and worst of all, married.
It’s a PR disaster. To save our reputations, we have to sell this marriage to the media and to our families. Go to parties. Move in together. Act in love.
Neither of us have ever mentioned that one drunken night in college, when we crossed lines branded into us from birth. I’d assumed he’d forgotten and moved on.
He hasn’t, and he’s determined to show what I’ve been missing. But Gabriel is too confident, too smug, and far too attractive for anything real. I can never let my guard down.
With his ring on my finger, we’re destined to be enemies forever.
Til’ death do us part… unless we kill each other first.