No.
no.
Kiba and Sakura are just friends. They don't have any kind of romantic relationship among them and it doesn't seems that they will ever have one.
Pretty much everyone does but kiba likes hinata and in the end I think she gives up on naruto and goes to kiba either that or sakura gives up on sasuke and goes to kiba.
Yes ! Yes ! Yes ! Yes ! Yes !
I don't think anyone is in love with Kiba, but I do think he has a little crush on Hinata
Sakura-ino Shino-kiba Shikimaru-Choji
I think Kiba might marry Hinata. I always thought Hinata and Kiba are cute together. Kiba does care alot for Hinata since they are both team mates and he was really worried about Hinata when she had to go up against Neji during the Chunnin exams. Unfortunately, Hinata is in love with Naruto right now, so it might not happen. But if Naruto does happened to marry Sakura in the future and since Hinata might be left out, then maybe Kiba might have a chance to be with Hinata.
No. Blue and Hige fall in love. Kiba meets a girl in the 'Garden of Eternity' but she was a lynx and Kiba went back to the real world. I'm not sure but i think Kiba loved Cheza.
I Love him !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
He loves Sakura.
Nobody knows who Kiba will marry. Not sure how to post a new answer so I will add on to this it is unconfirmed whether Kiba has married however he does end up inviting Tamaki, the granddaughter of the old cat-lady Nekobaa who would supply the Uchiha clan with weapons, to live with him. Being a Japanese manga and the way the culture is it is highly unlikely they are not at least engaged if they are happily living together.
They never do because they never actually communicate in basically all of Naruto and when they do its never friendly. And plus Kiba likes Hinata and there are some hints that he has a thing for Sakura and Ino likes Sasuke and if she were to get over him she would probably pursue Shikamaru. Not Kiba.