On a serious note: By hurdling her into a corner and separating her that tells me he is trying to dominate her and no I don't mean Dominations !!! (pun intended)
I would suggest stopping it each and every time he does is, even better before you think that he is going to do it. Don't even allow him to get to the point where he has the opportunity to get her cornered. Use firm voice commands and redirect him to a toy of something else that will keep his attention away from her. If not I would put him in a time out in his cage. No three strikes rule, don't tolerance is the best solutions. If he wont stop the first time you correct him than separate them.