Based on that flashback during the bullying, getting trapped was less traumatic to her than whatever her sister did to the person who trapped her, which seems to have been kidnapping and locking her in the same shed.
Because they granted the reasonable wish and they would refuse exploitation of the wish?
I mean obviously they aren't good because they put him in this situation in the first place, but it's an extremely reasonable decision.
This story is cute so far, but my biggest issue with it is that they just don't seem like friends who've known each other for 10 years? With the way he blushes and stammers around her, you would think that they'd only just met.