The stuff was a bit confusing at the last few pages, exactly what happened?
The phoneboy asked for "the relationship" as payment, but mc then decided to suicide (which I assumed was because of sad, but then his dialogue indicated that the suicide was a part of the deal? Except it clearly wasnt?)?
And the phonegirl asked that in return for humangirl getting "the humanboy" (humangirls message only had his name in it, nothing else), humangirl pays with "humanboy never forgetting her" (but he never were forgetting, it was the girl forgetting him? so it was redundant, unless his failure at suicide is because if he ever becomes mortal and dies it counts as forgetting her? My guess is redundant, as the payment supposedly was equivalent to the request, and humangirl asking for him was redundant as he already were hers)?
Feels like he just wanted to suicide by himself (in which case I have no idea what his lines about "refund" was about), and him not doing it wasnt permanent as soon as he gets fed up again.
@GrayBypasser
in "1" you forget that in the end it shows her cost.
Her wish was "boysname-kun" (it showed her wish in the chapter when the mail was first brought up, and it was only his name),
and her price was "boysname-kun never forgetting her" (shown at end)
And no, I refuse to accept any arguments about reflection being censoring to keep her wish a mystery until some anticlimatic reveal (that fell flat), with the one at the end being the reveal uncensoring it!
(though I do also have a proper reason: the phone glowed from a new notification, hence the message being the reply)