I celebrate my wife's birthday, but she won't celebrate mine
I make her a cake, take her to dinner, get her a gift.
For me, she buys me a cake if she feels like it, then tells me to go buy myself something for my birthday (oooooo...special ).
I know---why do I do anything for her birthday? Well, if I don't, she'll have the argument of "you didn't do anything for me, why should I?" Where as if I do, I'll have years and years of guilt that I can call upon in the future It's an investment hehheheheh.