[cirno]

> all of this happened over a year ago and is essentially a closed chapter.

Very credibly threatening to sue your employer with a legal firm, regardless of whether you were in the right to do so, is never a closed chapter. Companies are made of people, and those people are not going to forget something like that. They're going to be waiting for their first chance to get rid of you.

Right or wrong, justified or not, if you threaten your employer with a lawsuit, you need to be looking for a new employer that very same day. The employment relationship is now irrevocably a hostile one.