In our department (15 colleagues) there is always a collection for birthday presents. All but 3 of us are around 30, I and 2 others are 50 ish.
It was colleague A's birthday last week and I knew it was her 50th and mentioned it was a round birthday to another colleague who has worked there for much longer and knows colleague A better. I have been there since November.
We collected 50 pounds for a restaurant voucher but never actually made a big thing of it being colleague A's 50th birthday.
She is very upset with me for letting slip that she is 50 as she feels the younger colleagues now treat her differently.
I had no idea she was so sensitive about it and have no problems myself with my age but have learned that others do.
I feel awful for offending her but the other colleagues could have also mentioned that it was not wise to draw any attention to the fact that it was a 50th birthday.
I have apologised profusely but she says she can't forgive me but will get over it.
Was I a complete bitch to let slip that it was her 50th or is it a bit of an over-reaction on her part?