is this normal?

So my ex boyfriend was manipulative, emotionally abusive, and was just generally awful. I ignored a lot of red flags for our two year relationship, but finally broke up with him and moved out when u found out he was cheating.

That was back in January. He also spread rumours about me (we go to the same uni), harassed me, and even tried to get lawyers involved as i “owed him $5000.” Of course he never got lawyers involved as none of the things he had said were even true.

I’ve been having nightmares ever since. Some are about him physically hurting me, some are about him harassing me, others are about me still being stuck in a relationship with him. But they won’t stop.

I tend to have dreams about worries and fears in my life - as most people do.

After I was sexually assaulted I had so many nightmares about it (and i still sometimes do), but that made sense since it was traumatic.

I just don’t know if having nightmares about my ex is reasonable?

I guess I should add that my current boyfriend and I have talked about a lot and something came up and he basically told me that some things my ex did bordered on rape. And I know those times did traumatize me, but I’m not having nightmares about that. So I’m just confused.