Been seeing someone for 10 months, met OLD and taking it fairly slowly. We recently met each others kids, all well and good.
He has a nice personality, we get on well but a few things are niggling at me... When I met his kids I brought them a little, gift - nothing big just a little treat to have after we'd eaten. But i deliberately thought about this and picked out something I thought they'd like. He met mine (I have one) only a few days after her birthday. He asked her if she'd had a good birthday but didn't give her a card or present. I'm not at all expecting anything big but I was a bit disappointed that he came empty handed.
We spent the afternoon doing an activity which I paid for and afterwards my little one asked for a milkshake which I also bought.
I think I just have quite a different nature in that respect, eg at xmas I gave him two token presents to pop in their stocking - we'd been together about 3 months at that point. He didn't reciprocate.
He has a good job etc., so it's not because he couldn't afford to be more generous. At the risk of sounding terrible - I'm honestly not grabby but I like a bit of romance - he hasn't bought me a single random present/treat (I've had a xmas gift and valentine flowers) since we met and we always split the bill.