"Oh, I'd gladly knot Clarence. He's sweet. Maybe a little too sweet for me. He'd wax poetry at me, I can't deal with that."

The truth is that Meg, upon meeting Castiel, had found herself not quite as unwilling to consider the match as she'd thought at first. Of course she's here on behalf of her family first and foremost, but... well, she's always considered herself something of a rebel. And Castiel would have done nicely, to be hers. But you'd have to be blind not to see that there's a much better match here for him.

Just one out of the whole bunch who's strong enough to handle the boy, without crushing that little spark of spirit that's so obvious in him.

Oh, she'd love to tumble with him. But she's not the alpha he'd really want, Meg's smart enough to know that. He'd be a good little omega for her, but she's still not the choice he'd make if he could. So why bother?

"Choice... you're a fool if you don't think Zachariah Novak won't be in there and try to get the boy to sign any contract whatsoever while still howling with pain. And we all know what choice the kid would make if he wasn't being pressured by his pack."

So maybe she's a romantic at heart and doesn't want to get in the way of two lovebirds. She'd still fuck Clarence if he spread his legs for her.