Supervisor trying to get me fired

So my supervisor is trying to bring up some old issues that have happened and I have responded to and felt like they were settled. These events happened 7 and 13 months ago.
I feel like with a RIF coming they’re trying (and in this case retrying) to fire me so they won’t have to pay severance and unemployment.

I have an EEO complaint against this supervisor and think this could be another claim for retaliation?

Any thoughts?