She doesn’t see the bigger picture. It’s definitely not just about veterinary school, it’s about EVERYTHING. He isn’t going to want a wife with a career, either. Sadly, her choice is likely going to be to marry him and not go to school.

The fact that she "understand[s] his side of the argument" is very telling.

I'm all for seeing both sides too, but when it's something this disgusting and pathological to the point where one's ambitions are being squashed in favor of HIS WAAAAAANTS, there should be no question about how to proceed. And yet she still has to ASK about it. We can only hope she does the right thing.