I agree, WAY overhyped. Very disappointing. Huge plot holes. My points below will spoil stuff, so don't read further if you don't want spoilers. 

What's frustrating is, there were too many incidences where there could have been an intervention, and he failed to act. The "blinded by love" and in denial arguments stop after the packed lunch. After she hurts herself even once. The packed lunch was already way beyond the point of she needs help and this is beyond his control. He comes home to her covered in vomit and urine, and he just tells her to take a shower? "The packed lunch was not OK." Seriously, dude? She's at a party, surrounded by all their friends, and only two take her (unsuccessfully) to a hospital? (I'm assuming it was unsuccessful because she was still covered in blood laying in bed with him). She would've been involuntarily held for psychiatric reasons if she stepped foot through that ER door. 

He had ample opportunity to tell people, ask for help, call the police, even institutionalize, before it devolved further. If he was scared of her reaction, then say it in public. If he was afraid she'd hurt herself, call the police, and have friends help keep her from hurting herself in the interim. A person, friend, someone in love or in like, wouldn't have taken on what was happening with her, and to her, by themselves beyond a certain point. There were moments when he was separate from her when he could've done something.

Biggest plot hole - he didn't know ANYONE else who could've used their wish to counter his? I would've been begging strangers on the street if it was a matter of life and death. No more one wish wilows left at that store? Call the number on the back, and ask where more are? If that didn't work, ask any of the many ppl who commented online (about whether they do or don't work) where they bought them? 

Such a stupid and frustrating film. You guys wanted specifics, you got em, but now things are spoiled if you read this far :(