Not sure where to post this, but guess it's an issue for complex/blended families. DP and I are getting married next year. We both have DCs to our exes. Haven't sent out invites yet but have been telling people who'd have to travel to save the date, etc.
I was never actually married to my ex but his parents are my DC's grandparents and since we split up I have kept up contact with his mum fairly loosely - speak on the phone a few times a year, she sends cheques for the kids Christmas, etc. I told her we were getting married and she was pleased for me (though openly said she still wished it was my ex I was marrying!) but has since said several things very much implying that she's expecting to be invited. (She's got the date in her diary apparently!)
I hadn't really given much thought to inviting her (and her DH) tbh. I suppose they'd like to see my DCs all dressed up nicely. But they'd hardly know anyone else there - she's not met DP, or his DCs. They've met my own parents once, many years back.
I'm worried it would be a bit odd for my own parents, or for DP's parents - who've not yet met each other - to have ex's parents there too.
I'd also only invited my ex (and his DW) along to the evening do - a ceilidh, which they'll probably enjoy, But his parents are too old for dancing and would have a long way to travel so coming just for the evening wouldn't really work.
We're not actually particularly short of space and could invite them if we want. My DP says it's up to me (though admits his parents might find it a bit odd).
Are they being presumptuous by expecting an invite? Or should I continue to see them as family, as they are my DC's grandparents?