It's a process and once it has been triggered, it has to be seen through to the end. There have been too many women and childen killed for them to say, "Oh well, she had concerns but he's never been convicted of anything and he's toned it down a bit now anyway, so it's all good!" Because they understand how abusive men work.
It also doesn't mean he is abusive or a risk.
It's not personal to you.
I've already explained why they do it, what it will entail at most and why you don't need to worry.
But I don't know him or you.
To speculate, they might have legitimate concerns that you carried on seeing a man you were concerned enough about to ask and then continued a relationship with but you will also be able to explain that.
Tbh, if I'd felt concerned enough to make an enquiry about someone whose involvement in my life I was fully in control of, I'd have ended the relationship not checked it was ok for me to continue seeing them regardless. They will just want to make sure that, if the concerning behaviour re emerges, you will also end it and not just accept it.