Uhm, no. I countered the common meaning of "not very much maintained" to save time, but left room for him to correct his meaning if I missed it. It wasn't aggressive. So no, we're not "both in the wrong." You attacked someone, unbidden, for apologizing for a mistake he made months ago, which none of the people originally party to felt the need to continue.
But whether you choose to learn from this is up to you.
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Uhm, no. I countered the common meaning of "not very much maintained" to save time, but left room for him to correct his meaning if I missed it. It wasn't aggressive. So no, we're not "both in the wrong." You attacked someone, unbidden, for apologizing for a mistake he made months ago, which none of the people originally party to felt the need to continue.
But whether you choose to learn from this is up to you.