Poor thing!
xd I was thinking this guy:

He's fairly young and is only experienced in catching prey beasts. He might try to take a slave, but would be fairly easily discouraged if it wasn't as easy as he thouhgt. He'd probably be the easiest one to get away from! If she got one or two good bites in he'd probably chicken out. Did you want her to be hurt at all?
I don't want to plan it all out, but it's always good to set the boundaries first. I will not call shots so if he attacks her in any way you'd be the one to decide if he hit her and what (if any) damage it would result in.
If you want her to be caught and then escape later I've got this
happy slave that could help her escape by mistake or something
razz He's too happy-go-lucky to be upset over being a slave, and he doesn't quite get that others might not want to be in that position.