to be annoyed that DSIL wants to bring her dd along on our dog walks?

[TheKitchenWitch]

It's not going to happen because we meet in the mornings when the kids are at school, but I have a feeling she's going to ask to reschedule, which is missing the whole bloody point! We both have dogs to walk, and she works not very far from me (own business so takes dog to work), so we meet halfway, do a nice walk, the dogs play, we catch up (aka as have a bit of a moan) and then go our separate ways. Takes an hour. Is perfect.

Now she says that her dd is feeling left out and would SO love to come with us and maybe we should arrange that.
And whatever her dd wants, she generally gets. I'm not going to budge on this, so I bet SIL is now going to say she can't come any more because it upsets her dd too much.

Just light-heartedly say "eh no way jose, my morning walks are a child free affair, your child and mine 😂"

I wouldn’t call it adult time, your SIL probably share too much with your DN

Sorry, posted too early.
Probably DN feels that she is missing something exciting hence asking Mum to take her as well. I would insist that mornings are more convenient for you, just this.

Witchofwisteria lol no, definitely not starved of adult company, nor friends, thanks. So that means I'm being unreasonable and should reorganise so that my morning walks with SIL can include her DD, right?

I do realise that dd is having a difficult time, and SIL is probably over sharing and worrying too much. But still, dd is AT SCHOOL, and SIL would be walking the dog without her anyway!

OP. Tough love here. How come everyone else's wants trump yours?!
You're tying yourself in knots here. Stop trying to justify / explain / accommodate. For me, my dog walks were the essential escape from an extremely difficult and horrible home situation. It's OK to put your own preferences 1st.

If you end up giving in tell the dd she carries the poo bags.
The full ones!