My DP has two DC, a DD of 7 and a DS of 3.
He left his ex last May and initially, his ex didn't allow him to have the children at his new place. However, overnights started to happen last August and things settled down a bit.
The children met me in early January, which went well, and we moved into a place together in late February, where the children have a lovely room that they love.
He currently has an arrangement with her for the children to be with us for Thursday dinner-time (5pm-6.30pm) each week, and then an overnight on Saturdays EOW (they arrive 9am on Sat and leave 6.30pm on Sun). So this is only 2 overnights per month.
He isn't very happy with this and doesn't feel it's good for either of the kids, but, of course, his ex is the RP and has all the control. He doesn't want to take it to court yet, as it's been a struggle to get to a civil way of working which only ever feels a transient thing. She doesn't want to talk, so texting and emailing is how everything has been arranged so far. Also, although his ex will probably be entitled to legal aid, my DP wouldn't be, but is horribly in debt already, because of having to take loans to fund their joint mortgage until last December, since she is refusing to sell. (She is now funding this herself with SMI benefits).
Her reasoning behind not wanting the children to stay for an extra night on the Sunday EOW was initially that the 3-year-old is too young and then became that it was "unrealistic" and "impractical". I completely understand that she may not want to lose the children for another night, but we can't understand why it's impractical, or why his DS is too young for a 2-night stay with his father, whom he loves to bits. I also have a great relationship with both children and they are very comfortable when they stay with us. It doesn't feel like this decision is remotely in the best interests of the children so I'm just trying to see if there are viewpoints out there that we've missed. This is particularly true since they have spent more than two nights with us on a view occasions now and it's always been completely fine and everyone's been happy (4 nights at Easter, and a 2-nighter to make up for a missed weekend, and then a 2-nighter last weekend when his ex went somewhere - so this one is interesting since it was definitely her choice and basically asking for a favour, which of course my DP snapped up!).
This ended up being long, sorry...