Two differing views there!
I do have lots of toys for him and we try to make sure that he's got time with his dad on his own (I also want time with my girls on their own so it works both ways!).
I think part of the problem is that he has no routine or rules that I can tell. He's here pretty much every time his dad has him, but routines are not followed by him. He's an incredibly fussy eater, whereas my girls are not they'll eat all sort of fruit and veg, so I find cooking for him frustrating, because he will only eat pizza, sausages and mash or toast. When my eldest sees him misbehaving, she does too.
He's terrible in the mornings too, he shares a room with my eldest, but from 4/5am he's up and repeatedly coming into our room to ask to go on his iPad, it wakes my two children up and they struggle getting back to sleep so their behaviour throughout the day is terrible.
He's an only child at home, so is used to having people play with him constantly, he can't just colour in on his own, and is only really happy when he's on his iPad or Xbox.
I know that sounds negative, and it is, but its the fact that his behaviour affects the girls that annoys me most. I've tried mentioning it to my partner, but he always gets a little defensive. He's really strict with my children, parenting term in the same way I do, but is, I feel, guilt parenting his child. I know it can't be nice being away from him, and I know he doesn't want to spend his time disciplining him, but parenting isn't just about fun. My DP is also critical of my Ex Disney parenting my girls (and he does a bit) by can't see that to some extent, he does the same.
I do really want to like the boy, and we have moments where we have fun but I just can't seem to get a real bond. I would rather walk away than ruin his childhood by having him come to a house he felt tension in. But when my children have formed such a bond with my DP, and I love him, it's not so easy.