With all due respect, your mom sounds like a piece if work and can do much better.
My mom is not particularly touchy feely, but she at least makes an effort on your birthday to express her pride and joy and hopes for your future.
So its understandably upsetting that your mom behaves the way she does. Even at 35.
I don't care if my daughter is 12 or 40, I intend on always letting her know I am damn happy I had her and its cause to celebrate!
Happy birthday SS, don't let the *****es bring you down

enjoy your birthday with your wonderful man and leave the "mommy issues" on the back burner for another day hun