Arranging for DS to see his dad

[Peach2021]

STBXH and I are now living separately and although he sees DS regularly, all of the organising of that fell to me - like it always did - or it wouldn't have happened.

I'm now wondering whether I should be initiating discussions about STBXH having DS in the school holidays or whether I should just leave him to ask ie make some effort...DS' wellbeing is my priority so part of me feels I need to make sure it happens, but I am so sick of running my STBXH's life for him...and I don't want to set up a pattern where even when we're divorced he expects me to organise everything for him.

What do you all do?

I am in pretty much the same situation, I am still figuring out how much organising to do... but so far the DC haven't stayed at STBXH once... and its been almost 2 months since we moved to different homes...

When I was initially splitting with my now exh, I had to BEG him to see his son. I did this for 6 months then told him he needed to organise when he would have him.
He had him once more and he's not seen him since. That's when he was 3. He's now 11.