XP live a couple of hours away and comes to see the dc about once every 6 weeks, this is his choice, I want him to come more regularly. Over the last year he hasn't seen them much, and not very often on his own, he used to come and see them at mine but as we don't get on ivsaid he needs to take them out somewhere instead.
Anyway, yesterday he took them to soft play for he afternoon, and while they were having lunch he left dd2 (2.8) on her own to go and get some ketchup. He tried to get DD1 (4.3) to stay at the table but she wanted to come with him, he told them that someone needed to stay with the food, so left dd2 who didn't mind staying at the table. I wouldn't mind if he could see her, but he had to go downstairs to another level of the building where he could not see dd2.
This makes me feel uncomfortable, I think she is too young to be left in a public place out of sight. Also, due to the little amount of time he spends with them I don't trust his judgement in these situations. He told me I was overreacting, and I shouldn't criticise his parenting.
So AIBU, or is what he did ok? I am more than happy to be told I need to chill out and trust what he does.