The story never states that Neville gets a girlfriend. However, in the movie Neville and Luna do seem to have a bit of a relationship, or at least the beginnings of one. But there is a show or short documentary or something called The Life of J.K. Rowling I believe. It states what becomes of some of the characters in J.K. Rowling's mind.
Neville Longbottom became the Herbology teacher at Hogwarts.
Neville Longbottom? Augusta
No, Neville married Hannah Abbott and Luna married Rolf Scamander.
No, Neville survives through to the end of the series.
Neville longbottoms date to the Yule Ball was Ginny Weasley
No, Neville Longbottom is not single.
It is unknown if Neville Longbottom had any children.
Neville Longbottom became the Herbology teacher at Hogwarts.
She went with Neville Longbottom
Neville Longbottom is a/an Professor of Herbology at Hogwarts School of Witchcraft and Wizardry
Harry Potter told Neville Longbottom that Nagini had to die so Neville Longbottom decapitated her.
Neville Longbottom beheaded Nagini, the snake.
Neville Longbottom? Augusta
It is unknown.
cast spells?
Neville Longbottom is played by Matthew Lewis.
No, Neville survives.