Her parents were not fighters.
...except.
Except, apparently, they were. Apparently her mother cast a switching charm strong enough it overpowered the Veil, and sent Bellatrix through, instead.
"I-I don't...my mom?!"
"Nearly got old Nott, too."
"...was he captured?!"
She shot out of the room at Sirius' nod. She had exactly one day. One day to try and make her insane plan work.
She grabbed Astoria, who grabbed Daphne. Sent her patronus to Cedric, and started drafting a letter.
Then, she prayed.
When Theo didn't get on the Express she relaxed.
That's one friend safe.