Philippa's face has eye to eye contact to you and she seems to be very pissed.
Still shocked that she caught you, you try to stand up, but can't... looking down you see and begin to feel her horse body is sitting on your legs. Due the dizzy feeling in your head and the soft-wet jungle-earth you didn't realized it at first, she has trapped you.

"I've seen many things before, however you're one of the top in the ranks of stupidity...." she begins.
"What?" you ask ('slightly feared what she might do with you now').
"Don't get me with: 'What?' !" she responds spitefully. "I let you live... and the best thing you can think of is running away instead of helping me? For real! A human trying to run away from a centaur is the most stupid things I heard of..." She gets close to you... face-to-face... only inches separate you two... "If you would have been smart you would have tried to climb a tree or something, instead of running away from a creature which is most likely 3 times faster than you. This scene just now almost screams out that you wanna get in here" she pats her horse body parts and begins licking her lips.



Very well, your last idea was rather stupid... or at least bad planned through.
What now? Within the next few minutes you're about to become this centauress lunch.
Struggling won't work.... she's too heavy and strong.... Philippa won't even listen to you cause you tried to trick her....
The only two options left are either: Accepting your end.... OR: Praying for help and slow her down with struggling.