I've namechanged as I feel a bit upset and embarrassed.
A workfriend asked if I wanted to meet up this weekend at a soft play centre, and then said another colleague was coming too, which was fine with me.
Yesterday evening they each sent me texts saying that they can't go. One said she was ill, the other said her husband was off work so they were going out. Fair enough.
However one of them has just checked in on FB at a cinema, tagged the other one and said they're having "a great day out with the kids".
Charming!
I'm pissed off. The second colleague that was invited along cannot bear people to be friends with each other, she wants to be involved in everything, so I am assuming it was her doing.
Won't be organising anything with either of them again!