Is it normal to still dream about a coworker you never liked?

I used to work with a coworker that I couldn't stand. She got a new job one day and it so happens her new job is right next door.

Once she left. I never saw her again. However. We now do work for her sometime at MY job. And she fucks it up every time.

However, I never physically saw this person again.

And yet I still dream about her. I dream that I'm yelling at her and that I'm getting my feelings off my chest.

It doesn't happen every night. Only sometimes. And it can put me in a bad mood for a while. I think why I hate her so much is we used to be friends. And she ended up just.. not talking to me anymore, even though we had to work in the same department.

She got her new job 2 years ago. And I still hate her to this day

Is it normal that I still dream about how much I can't stand her?