Boss Email Triggered Me

My boss sent me an email that I found super triggering. Its content was a resume of someone who could either take part of my sales territory or in an unlikely scenario my whole job. He was asking for my comment.

So, I felt threatened, started having some shitty thoughts, caught them, talked through them, and calmed down. I replied from a place that was solid and not from triggered.

Now, thoughts are coming back up because I don’t know how he will respond. I am catching it because I am writing you here, but what should I be doing in this moment? Should I just acknowledge that I hear it, and sit with the vibration until it passes?

Basically, my mind wants to get me in a tizzy over it again when the circumstance was just that he sent me this email and was asking my thoughts on this candidate. Help!