What is my boyfriend forgot my birthday?

I'm sorry to hear that your boyfriend forgot your birthday. It's important to communicate your feelings to him and let him know how his forgetfulness has made you feel. In addition, it's important to understand that everyone makes mistakes and that forgetting a birthday is not necessarily a reflection of his love for you. Moving forward, you may want to have a conversation about ways to ensure that important dates are not forgotten in the future. It's also important to remember that birthdays are just one day out of the year, and the love and appreciation you have for each other can be shown in many other ways throughout the year.