I am apparently confused,

I cannot find any link between justification and love. I mean salvation and therefore, justification is "by grace through faith" we all know that, so justification must proceed love. In light of that I can't see how we could say that in any way that we are justified by love.

this may just be a fundamental difference of opinion, I see it this way,

The Holy Spirit is the only efficient agent in regeneration, therefore the human will possesses NO INCLINATION to holiness until regenerated and thus cannot cooperate in ANYWAY to regeneration

and if we cannot cooperate in regeneration what could we possibly have to do with our justification--- nothing not our faith or our love or our belief or anything we exercise can have any influence on our justification

again I maybe just confused about your link between love and justification

I will add one of the reasons that Christ could say that the woman in Luke 7:47 had her sins forgiven, was because he could see the fruit, she loved him, this stemmed from the faith given her, which stemmed from the saving grace given her. Her love was just a manifestation of what God had already worked out in her.