With every step, she felt something inside of her was growing, almost struggling to break free. Something she was not even sure of it’s existence, but always felt resting, waiting for the right moment to rupture, for a small fracture in it’s cage to appear.
When she finally reach Discord and his vulnerable state reflects in her eye’s.
It finally snaps.
Her pupil turns to a shade of ruby as to mirror the rage manifesting inside of her small body. Tears escaping, her now blood shoot pupils. Her golden feathers, molts from her wings only to reveal the wings of a bat underneath, as her feathers get’s carried of by the wind. Fangs ready to draw blood, grows out of her mouth in painful fashion, now prepared for battle.
Her small frame act as a poor shield, at covering his wounded serpent like body from the danger that lies ahead. But all that matter was, she was there now, and she would not let anymore harm be done upon the one she love.
*Her Husbando, prepare to be Destructo.

your current filter.Not the point.
Read the description?
From her position I’d say she’s trying to shield him from something with her body.
From her face, I’d say she’s going to put that something in a deeper hole than it put Discord in.