Birthday Party, WWYD?

[dippylongstocking]

DS (soon to be 7) handed out invitations at school today for birthday party at end of March. Within 10 minutes of school ending the mother of one of Ds's classmates sent me a text saying 'Sorry, X won't be at DS's party because X's party is at same time.'
I replied, saying 'Never mind, have fun.'
I assumed that would be the end of the conversation, but got reply almost immediately saying 'X has invited most of class so don't expect many to come to DS's party. I'd rearrange if I were you.'
DH thinks it was rude of her to suggest we should rearrange, but I'm not sure if she was trying to spare DS's feelings when his friends don't come to his party.
I don't want DS to be disappointed, but its the only time we can really do anything because of other family birthdays etc, so cant really rearrange it.
I'm quite new to the birthday party thing, and I tend to over-worry about stuff, so just wanted to see what you guys think?

Weird turning it into a popularity contest isn't it?

It's a party - small school - where you are there for a long time - no point mailing enemies over a party - she should learn some manners

I'm not talking about a whole new date. I'm talking about putting aside new parent's irritating manner and considering whether, between the two of you, you could organise for one party to start a little earlier, and the other a little later on the same day, so that children who wish to can attend both parties, avoiding them having to decide between friends, or either being stood up by their mates.

You see that logic would have worked with a text 'OH no our parties clash!! Can we meet for a plan?' Seems we've both invited X Y and Z !

I would be guilted into moving my party. I would seethe with resentment towards the rude, abrupt, unfriendly, socially inept Mum (seriously cop yourself on, love), while feeling really bad for the DC who bares the brunt of it.

I am honestly dreading this shit