Liz laughed, lightly. "You can't betray blood. You're stuck with what you've got."
Liz sobered a bit, and turned to her bag, and pulled a small 'item' out. "Bella, this is for you." she enlarged it, and it was visisibly a bouquet of wildflowers, all in Slytherin colors. Bella and Courtney would recognize them from Liz's antics last time on their way to the Three Broomsticks.
"Something to brighten things up. Hopefully you won't stomp on them."
She came a bit closer to Bella's ear, and said in a serious voice, "No matter what you think, I really do care. And I will not lie to you about that."
Liz pulled back for a moment, keeping her serious-face. Then she grinned, and held out the flowers to Bella.