Malfoy is trying to get her out though. He went to the drop point as soon as he was able to slip away, and left a message there detailing the situation and demanding an urgent meeting. He goes back out to check if the Order has collected the message and left a portkey for a face to face meeting every chance he gets, but so far the message has been untouched. Or so Malfoy says, and Hermione trusts him.