I have sent a message asking details in DM, I have left a Red trust on his profile (I don't trust his judgement and the negative trust without sense Is a clear reason)
How to handle a non sense Red trust by "trusted" member?
If I was you, I don't leave a negative feedback like this on that account. It is like a revenge effort and I believe it won't lead to any way to resolve your negative feedback.
Sending a DM to that user is right and let's wait for his response. Meanwhile, remove your negative feedback on that account before you receive an answer from him.
I saw that user recently left many trust feedback on some accounts include yours but only your account got a negative one. Anyway, avoid to escalate it too quickly.