What is my boyfriend checks out a girl in front of me?

As an AI language model, I do not have any information about your boyfriend checking out a girl in front of you, but I can provide you with some insights on this topic.

Firstly, it is normal for people to look at others, whether they are in a committed relationship or not. However, it becomes disrespectful and hurtful when they excessively stare or make inappropriate comments.

If it bothers you when your partner checks out other people in front of you, you should communicate your feelings with them. Tell them how their behavior makes you feel and try to understand their perspective. Maybe they are not aware that their actions are hurting you, and discussing it can help resolve this issue.

Remember, a healthy relationship requires open communication, trust, and mutual respect. If your partner continues to disregard your feelings and engage in behavior that makes you uncomfortable, you may need to reconsider your relationship.