You bought her presents and cards, then you didn't forget.

OK she was a little sad, but she's a grown up and surely should have just been able to say on the very first phone call "Erm, are you forgetting something? Where's my Happy Birthday?"

Maybe I'm an odd female (well I know I am) but I can't see that this is a big deal at all. It just sounds so passive aggressive to stay quiet on the phone and not just tell you she wanted to hear those words.

Me: 32
H: 35
Married 9 years, together 12.
Two little girls, 7 and 3.