On occasion, we get lucky and bump into someone else that adds to our light by being on the same wavelength. However, most times we usually just bump into people that are way out of tune that insists theirs is the only melody to sing.
...and sometimes these latter people, the ones that we think are way out of tune, think that we
are the ones who are way out of tune...
...and sometimes they're right.
Given how easy it is for the two situations to look very similar, it's probably best to always allow for the possibility that you may be the one who is "out of tune". Even if you're sure that you're not, though, there's no sense butting heads over it. Get through it gracefully and move on.