I hope I'm intepreting your question correctly. Affinity for me is feeling a connection or being on the same frequency as someone - thinking alike on certain topics etc. Faith is believing in someone or something without any logical proof or concrete evidence to reinforce that belief - I can have faith in someone's ability to do something but not necessarily feel an affinity with that person. Love ( unconditional love) on the other hand is who I am at the very core of my being and when I am tapped into my essence is what I feel for every other being I am in contact with - Love is the Divine in me recognizing the Divine in you,the place most of us aspire to live from but too often can't because we let our egos get in the way.