My ex and I spoke about organising a party for DS at a local soft play, and going halves on the cost. Sounded fine, so I agreed in principle, but nothing more was mentioned about it for months.
Fast forward to this morning, and my ex gets in touch about booking it up. Only now it transpires that not only is it a kids party, but my ex is inviting lots of family and partner.
I said that's not the sort of event I want to pay into, as my family won't want to attend as my ex has been rude to them in the past, and my ex doesn't want my partner there either (which isn't so unreasonable as we've not been together long).
Am I being unreasonable to not want to shell out for a party where I'm going to be marginalised?