The Enforcer by Katrina Jackson

Zoe:
What should you do when your boyfriends try to spring a baby on you? Fight and then leave.
What should you do when the old women in your family want to know why your sister has gone MIA in Italy? Tell them you are not, actually, your sister’s keeper, but then remember that you’re never old enough to talk back.
So that’s how I end up in Naples with my cousin Shae, who is acting very strange, a broken heart, and no real plan besides finding my annoying little sister, Zahra.
But then I meet Alfonso.

Alfonso:
Being Salvatore’s bodyguard is the perfect kind of danger, but the past few months have been a bit much even for me. My partner in literal crime, Giulio, returned from his vacation with Zahra and now the two are nearly inseparable, and the responsibility of keeping everything in order has fallen to me.
But when Zoe bursts into the restaurant (and my life), Salvatore goes rogue, and there’s another assassination attempt, everything goes to shit rather quickly, so I go home to Positano to regroup.
While hiding Zoe in my family’s hillside home, I have to fight my growing attraction to her while convincing my mother and brothers that this woman I barely know is the love of my life.
I would have preferred a gunshot wound.