親しい, 親密 and 仲良し: closeness and becoming closer
Compare established friendships with becoming closer through conversation or joint work. Keep the wish to value courtesy distinct from a completed action, without ranking the three words by a fixed degree of intimacy.
A close friend and getting closer to a teacher
「学生時代から親しい友人と久しぶりに会った。」 (I met a close friend from school after a long time.)
Another example uses 親しくなった for getting closer to a teacher through repeated conversations. Meeting an established close friend and becoming closer through conversation are different scenes.
Growing close through work and wishing to value courtesy
「共同作業を通じて二人は親密になった。」 (Working together brought the two of them closer.)
Another 親密 example expresses wanting to value courtesy even in a close relationship. The closeness of the relationship and the wish are distinct; the wish is not a report that courteous behavior has already been carried out.
Spending breaks together and a childhood friendship
「隣の席の二人は休み時間も一緒にいる仲良しだ。」 (The two people sitting next to each other are close and spend breaks together.)
Another sentence describes meeting a close childhood friend after years apart. Read the close state, a change toward closeness and the wish in a relationship without treating the three words as fixed ranks or romantic stages.
Does 親密な間柄でも礼儀は大切にしたい report that the speaker has already acted courteously?
Show the answer and why
No. It expresses wanting to value courtesy even in a close relationship. Keep that wish separate from the other example's change toward closeness through joint work.