Lonicera, I am sorry to read your update - no other uni course is this harsh, even Oxbridge as they will get other offers for same subject at frat unis even if rejected.
My eldest studied at Nottingham, great Uni and very good student city - even so your dd needs to feel that way too. I would advise say yes to the alternative, there is nothing to loose, she can change her mind at any stage - even after a term of trying it (student debt will be written off if in first term).
Also I know a really bright student with anxiety under a doctor etc who is now one of a handful on a highly regarded graduate scheme in the pharma industry - her medic friend is quite envious!
Play the game, keep options open be it alternative course, fun:working gap year, whatever seems best for your dd. And make sure her boyfriend invites her to an Oxford ball
.