Yes. According to Rowling, Neville would always find Luna's antics alarming, although that never stopped Ron and Hermione, seeing as how alarming their relationship was.
At some point, people believed it was common knowledge. I had to look things up to figure it out. Like, I thought Neville and Luna ended up together until I found out online that she ended up with some lameo Scamander fellow and he ended up with some random Abbott chick from Hufflepuff. I think they were a match made in mistletoe<3
I still love Astoria though. She sounds unique, I mean, she got Draco Malfoy after all. Obviously, she's gotta be a keeper. :D
She doesn't show up in the books. Fans got mad that J.K. Rowling didn't tell us who Draco married so she released that he married Astoria Greengrass and had Scorpius. She's two years younger than Daphne, who I believe is in Draco's year. That's the good thing about her; you don't know who she is. Just who she's related to. It's 'presumed' that she went to Hogwarts, but I always imagined her as a brown-eyed brunette who attended Beauxbatons.
my art is going to be in an art show, i just dont know when and where its going to be