Fake Marriage with the Billionaire

Fake marriage with my brother’s best friend? I’m no longer thinking rationally…
Richard Hollis III is a CEO legend in the body of a Greek God and my brother’s best friend, who has been getting on my nerves ever since I was ten.
When his father passes away and leaves him everything, he has to get married to see a single dime of it.
So he asks me to pretend to be his fiancée.
He gets his inheritance, and I get a fat payout to pay my bills.
There is only one rule. It’ll be a fake marriage with no real feelings.
But rules were meant to be broken. Despite our best efforts, we found ourselves having a one-night stand and becoming attracted to each other. What was initially a simple plan became a little more complicated.
His cold heart warms me, but I worry he might end our relationship right after he gets what he wants, which is his father’s fortune.