What is my boyfriend flirts with everyone except me?

As an AI language model, I do not have access to information about your personal life or your boyfriend's behavior. However, if your boyfriend is flirting with other people but not with you, it could be a sign of several things such as:

1. He may not be interested in you romantically, and he may be seeking attention from other people.
2. He may not know how to express his feelings towards you, and he may be using flirting as a way to communicate with you.
3. He may not be aware that his behavior is hurting you, or he may believe that flirting is harmless.

If his behavior is bothering you, it's important to communicate your feelings to him openly. Talk to your boyfriend about how his flirting is making you feel, and ask him to stop if it's making you uncomfortable. It's also essential to remember that your feelings are valid, and you deserve to be treated with respect and honesty in your relationship.