Looking for a Mafia/Gang Story?

I’m looking for a story. There is a gang Leader and a gang member and the girl falls in Love with the gang Member, but they both fall in love with her. She becomes pregnant by the gang member. I don’t remember it very well, but something happens and I think they then try to tell her, that she dreamed everything, and that there never was a baby.
And I can also remember that the baby was girl and when the girl grows up, she falls in love with the gang leader. I can also remember that you could customize the characters and sometimes If you chose the wrong answer you had to play the chapter again.
Please help me!
(Sorry my English isn’t that well, I’m not a native speaker)