Yes, he does.
Yes, Harry loves Ginny in Deathly Hallows. They share a romantic relationship throughout the book, with Harry even expressing his feelings for her before leaving on a dangerous mission.
No
Ginny Weasley, Ron Weasley's younger sister.
He was a tiny bit Jealous of Ron and Hermione at first but then he realises his love for Ginny.
Yes that's why he broke up with her. So she wouldn't get hurt while he was on his expedition, and also because he might die.
Because Harry knew that Ron and Hermione were ment for each other. He loved Hermione as a sister. He knew that his true love was Ginny.
In Harry Potter and the Half-Blood Prince Harry started dating Ginny Weasley however as he feared for her safety he decided that they could no longer see each other. It is clear that despite this he continued to love Ginny throughout his search for the Horcruxes in Harry Potter and the Deathly Hallows. In the epilogue we see that Harry marries Ginny and has three children with her.
In Harry Potter and the Goblet of Fire and in the Order of the Phoenix, Harry's love interest is Cho Chang. However, in Harry Potter and the Half Blood Prince, and in the Deathly Hallows, his love interest turned girlfriend is Ginny Weasley.
I think it's "My Love Is Always Here"
Harry Potter picked Ginny Weasley, though Cho Chang did try to win him back a little by volunteering to help him find a Horcrux but Ginny butts in and says "Luna will show him, won't you Luna?" There wasn't really anything to choose, Harry and Cho split up and Harry moved on, there wasn't a love triangle. He was over Cho, she only volunteered to help him because he was now very famous but Harry wasn't interested.
Each person has different opinions.Harry Potter and the Deathly Hallows.Harry Potter and the Order of the Phoenix.
They show the flashback in Harry Potter: Deathly Hallows Part 2! he dies and they do a flashback of when he falls in love with Harry's mom and they show it as they were teens
No one that we know of. It is never really said, at least from what i know.
Hermione Granger is not related to Harry Potter in any way. He does consider her as a sister, but through love not blood. In the epilogue of Deathly Hallows we learn that Hermione Granger has married Ronald Weasley and Harry Potter has married Ginny Weasley. In this way they become "family-in-laws."