It seems Mao really has feelings for Hazumi, but is also is acutely aware of her own shortcomings, and how they mean that their love will be ill-fated. I deliberated on the translation of the last page for a while, Mao is saying either Hazumi must realise it is a mistake being involved with someone her, or that she will get 'lost/led astray' by the money 'before her eyes', she seems to imply that one of these events must happen, as her feelings for Hazumi are too strong for her to reject her out of her own morality, which will only hold up so long until she is tempted to exploit her kindness.
Yeah, seems so. I actually kinda enjoyed this one