What happened when you confronted them on hurting you?

Broken up for 5 months. Has tried hovering me back and just discarded me again. I gave him a super detailed list of things he has done that have hurt me, how I’m not okay with it, and to please leave me alone for good. I gave him screenshots of things he’s said/done, specific examples, and how I feel taken advantage of and always am hurt by his actions, lies, and manipulation.

He responds “I’m sorry and I’m trying to get better. It’s best we don’t talk. Thanks for being there for me”

Is he a narcissist if he said sorry? I sent him a page long text and he responded with only what is in quotes. It feels insincere and like another stab in the chest.