At first Nymphadora Tonks had agreed not to participate in the battle of Hogwarts but was unable to leave her husband. When she arrived at Hogwarts she was informed by Aberforth that Lupin was seen duelling Antonin Dolohov and she went off to find him.
During the battle Lupin was killed by Dolohov in the Main Courtyard, as his screams were heard. His death was avenged by Filius Flitwick who defeated Dolohov
Tonks was killed by her aunt, Bellatrix Lestrange, in the third of their duels. Her death was avenged by Molly Weasley who killed Bellatrix.
Both of their bodies where laid out next to eachother in the Great Hall.
Teddy Lupin, whose full name is Ted Remus Lupin, is the son of Remus Lupin and Nymphadora Tonks. Teddy is named after Ted Tonks, Nymphadora's father who was murdered by death eaters, and is Harry Potter's godson. Teddy was born in April 1998, and is a metamorphmagus like his mother.
No. Remus Lupin's death is not seen, and neither is his wife Nymphadora's. Harry sees their bodies in the Great Hall.
Yes.
Antonin Dolohov killed Remus Lupin while Nymphadora Tonks was killed by Bellatrix Lestrange.
Nymphadora Tonks was in love with Remus and he thought that it was too dangerous for them to date due to his werewolf status and the Ministry's crackdown on half-breeds.
It isn't specified what spell killed either of them. Remus Lupin was killed by Antonin Dolohov and Nymphadora Tonks was killed by Bellatrix Lestrange.
They didn't. Both Remus and Nymphadora died in the final book, Harry Potter and the Deathly Hallows. They were killed during the final battle by Antonin Dolohov and Bellatrix Lestrange, respectively.
No, she was in love with Remus Lupin.
Yes, she has a son named Ted Remus Lupin (named after Nymphadora's father and huband). Teddy inherits his mother's metamorphmagus skills.
Nymphadora Tonks and Remus Lupin had a son, Edward 'Teddy' Remus Lupin in 1998.
Remus Lupin and Nymphadora Tonks.
They married and had a son together so we can assume they kissed.