Between cigarettes and cuddles

Dante and Cecil are the definition of the exact opposite. While Dante lives in a world full of danger, alcohol, fights and cigarettes, Cecil likes to cuddle and plan things out. She lives in her own little apartment, which she has bought herself over the years. She is a cat lover but he's allergic to cats. Both of them meet in an unexpected way. He tries to hide his past and be a better person to her but she slowly starts to change, so he finds her cool.
What will happen to them?