Cory, sorry about your BD. Happy Birthday by the way.
Take your emotions about this into account. It shows how much more work you need on detachment.
sandi says to look at your WW like a cashier at the store. If the cashier at the store needed to see your ID, saw that your birthday was today, but didn't acknowledge it, would it bother you? Of course not.
Make your goal that by the next milestone date (anniversary, holiday, whatever) that your WW's not acknowledging it to you will be meaningless! It won't affect you at all. If you can do that next time a milestone date rolls around then you will have properly detached.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018