Concerns regarding the word Affinity

I received feedback today from a survey taker about their dislike of the term affinity in thinking about the virtues. To clarify things a tad, I tested my own assumptions and went to dictionary.com to re-read the definition of the word.

With full respect to every person's unique perspective, I feel the definition fits very well. I do realize now that I will need to have to take some time in the book to define out affinity :-)

af⋅fin⋅i⋅ty   /əˈfɪnɪti/ Show Spelled Pronunciation [uh-fin-i-tee] Show IPA noun, plural -ties., adjective
Use affinity in a Sentence
–noun
1. a natural liking for or attraction to a person, thing, idea, etc.
2. a person, thing, idea, etc., for which such a natural liking or attraction is felt.
3. relationship by marriage or by ties other than those of blood (distinguished from consanguinity ).
4. inherent likeness or agreement; close resemblance or connection.
5. Biology. the phylogenetic relationship between two organisms or groups of organisms resulting in a resemblance in general plan or structure, or in the essential structural parts.
6. Chemistry. the force by which atoms are held together in chemical compounds.
–adjective
7. of or pertaining to persons who share the same interests: to arrange charter flights for opera lovers and other affinity groups.
Origin:
1275–1325; ME affinite < MF < L affīnitās connection by marriage. See affine, -ity

Synonyms:
1. partiality, fondness; sympathy, leaning, bent. 4. similarity, compatibility.