“We jumped never asking why”

Miley Cyrus – Wrecking Ball Lyrics on LyricsMode
EXPLANATION
This is quite obvious. She's saying they jumped to far in the relationship (their engagsment) she was only 19. And they thought they were so in love, they jumped at such a big decision in life, and never thought of what would come, let alone why exactly.
EXPLANATION
So this song is about Liam Hemsworth and she thought they shouldn't have gotten engaged so young. Maybe she thought if they had gotten engaged later, they would have been a great couple. Maybe she thought if he knew the song was about him, he'd want to get back together because they broke up in September. She was heart broken, so she did what Taylor Swift does best: wrote a song about him. He just got Swifted by Miley!!!
EXPLANATION
I think shes saying that they jumped together and they never asked eachother why thay jumped who agrerres with me.
EXPLANATION
Her meaning is she should and he should get over it.