It's important to note that I don't have specific information about your boyfriend or your relationship, so I can only provide general insights into possible reasons why someone might feel angry or upset when they don't receive all of their partner's attention. Several factors could contribute to this behavior:
Insecurity: Your boyfriend's anger might stem from feelings of insecurity or low self-esteem. He might fear that if your attention isn't solely focused on him, it means you are losing interest or that he's not important to you.
Need for validation: Some individuals seek validation and reassurance from their partner constantly. When they don't receive it, they might interpret it as a lack of love or care, leading to anger.
Past experiences: Previous negative experiences in relationships, such as feeling neglected or abandoned, can lead to a heightened sensitivity to any perceived lack of attention.
Communication style: Some people express their needs and emotions through anger rather than open communication. Instead of calmly discussing their feelings of wanting more attention, they react with anger as a way to get your attention.
Emotional dependency: Your boyfriend might have developed emotional dependency on you, seeking to fulfill all his emotional needs solely from your presence and attention.
Control issues: Anger can sometimes be a way for some individuals to assert control over their partner or the relationship.
Unrealistic expectations: If your boyfriend has unrealistic expectations about how much attention you should give him, he might react negatively when those expectations are not met.
It's essential to have open and honest communication with your partner about your feelings and needs, as well as to encourage him to express his concerns in a constructive manner. If his anger becomes excessive or harmful, it may be helpful for both of you to seek the assistance of a relationship counselor or therapist. A professional can help you both address underlying issues and develop healthier ways to communicate and relate to each other. Remember, a healthy relationship is built on trust, communication, and mutual respect for each other's boundaries and needs.