Yes, in dissociative identity disorder (DID), it is possible for an alter (also known as a dissociative identity) to have negative feelings or conflicts with the host personality or other alters. As each alter in DID represents a distinct and separate personality state, they can have their own thoughts, emotions, beliefs, and preferences.
These different identities may have varied experiences, memories, and perceptions of the world, which can lead to conflicts or disagreements among them. Some alters may feel resentful towards the host personality for various reasons, such as feeling suppressed or ignored, or they might have conflicting goals or desires. Additionally, alters may have different relationships with each other, ranging from cooperation and friendship to rivalry and animosity.
DID is a complex and multifaceted disorder, and the dynamics between alters can be quite intricate. The way alters interact with each other and with the host can vary widely from person to person. Therapy for individuals with DID often involves exploring and understanding these internal relationships, resolving conflicts, and promoting communication and cooperation among alters to work towards a more integrated and functional sense of self.