I suppose I'm here for a vent more than anything so as to avoid any rows. Earlier this year dp and I booked our wedding for spring next year, I have family abroad and would be so happy if they could attend. I was going to leave it the standard 3 months to send out invites but my relatives abroad know the date, as does my Ddad
A couple of months later dd and his dp get engaged, they booked the wedding for early summer next year so not long after ours. I am really happy for them as they have been going out a long time and seem happy together but deep down I was a bit worried the relatives abroad would not be able to make two in a year, especially so close apart. Dd told me not to worry about changing any of our plans, they said they would send nothing out about thier wedding until our invites are out.
I received my invites from the printers yesterday and as I was sorting them out this morning I recieved a save the date for thier wedding through the post, I assume they have sent the rest out as it was enclosed in my christmas card so I am guessing they are doing it to save postage.
I'm more annoyed that they have gone back on thier word more than anything else, especially as I have been trying to get hold of dd for about a week prior to this and he has not been returning my calls 
aibu to be a little upset?