Originally in the Half-Blood Prince, when Harry finishes a detention with Professor Snape re-writting misdemeanors committed by his father James and godfather Sirius Black, he goes back to Gryffindor's dormatory thinking that the Quidditch team has lost their last game and the Quidditch Cup, he is greeting by a wall of noise due to the fact that they actually won. As Ginny was acting captain, he went over and hugged her and kissed her, finally looking over to Ron who shrugged an approval for him and his sister.
Yes, We see in the epilogue of Harry Potter and the Deathly Hallows that Harry marries Ginny and together they have three children: James Sirius Potter, Albus Severus Potter and Lily Luna Potter.
No, Ron was very shocked when Harry kissed Ginny but he didn't get angry. In fact, Ron only grew angry in the next book when he thought that Harry was leading Ginny on after breaking up with her. In fact, Ginny had kissed Harry.
Ginny had one daughter with Harry named Lily Luna Potter after Harry's mum and Luna Lovegood.
Harry Potter and the Half-Blood Prince
Not sure what you mean by "real life": Both Harry Potter and Ginny Weasly are characters in a fantasy story. They don't exist in real life. In the story, Harry Potter dated Ginny Weasly, and they eventually married.