I didn't care for this one. Mostly because I just never gave a crap about the protagonist. Relationship "tests" like that one drive me nuts. But I'm of a stubbornheaded mindset that if I perceived my significant other manipulating me with such a test, there would be at the very least harsh words and much distrust as a result.
I realize that people actually do that, but I really prefer to be able to root for the protagonist and if you have the protagonist do this, then at that point the consequences are on her head.
And, Anarkey made some good points, particularly:
-If she's really that much in love, I want it SHOWN to me, not TOLD
-The sacrifice at the end was groanworthy.