This is Us by Bex Dane

Mila:
Foster’s the kind of bad boy my mom warned me about.
She said, Mila, watch out for hot guys with tattoos and lots of secrets, they’ll shred your heart and leave you in a million pieces.
But Foster is tempting me with the future I’ve always dreamed of.
He’s saying we could start a new life together somewhere free and clear of my family and their stupid expectations.
My mom was probably right, he might ruin me, but it would be worth every minute of it.

Foster:
I blew my shot with Mila when I was seventeen.
Too shy to make a move on the beautiful socialite, I let her slip through my fingers.
But I’m a champion underground fighter now and I’m back for my second chance.
Her rich and powerful father hates me, but I don’t care.
I’ll fight till the death for her if I have to, and I never lose.