It's both. Everything is 100% great in this department.
Separately, when he came over last night, I started to get super anxious about how serious it's all getting. I think he's objectively very nice and appropriate to my daughter and she responds well to him. However, I was slightly annoyed by two times when he was trying to help her but I found his behaviour undermining (she's 5, so trying to help her is tempting and also probably appropriate as she's fairly incompetent).
Last night i told him that I was feeling a bit overwhelmed and he responded in an ideal way, saying that this sounds like an uncomfortable feeling and we can continue progressing things slowly, no problem at all.
In this discussion, I practically squirmed when he was speaking about this as a shared plan to move towards a very serious relationship even though I have essentially told him that I believe this is practically inevitable for us.
In the meantime, my ex has been sending loads of nasty emails. I think that I am having some kind of trauma response that makes me want to run from any kind of intimacy.
I'm feeling super frustrated with myself and also more confident that continuing to take things slowly is the way to go. It makes no sense that I should suddenly feel this way unless it's an emotional problem within me.