There can be several reasons why narcissists might stop sharing your bed when you live together:
Loss of Interest: Narcissists often have a pattern of idealizing their partners at the beginning of a relationship, but over time, they may lose interest and become less invested in the relationship. This loss of interest could extend to physical intimacy, leading them to avoid sharing the same bed.
Seeking New Supply: Narcissists crave constant validation and admiration from others. They may seek new romantic partners or "supply" outside the relationship, and this pursuit of new sources of attention might lead them to distance themselves from their current partner, including avoiding intimacy.
Emotional Disconnection: Narcissists often struggle with emotional intimacy and genuine connection. As the relationship progresses, the emotional bond between partners might weaken, resulting in a lack of desire for physical intimacy.
Control and Manipulation: In some cases, a narcissist might use the withdrawal of physical intimacy as a means of control and manipulation over their partner. By denying closeness and affection, they may exert power and keep their partner emotionally dependent.
Fear of Vulnerability: Narcissists tend to have an underlying fear of vulnerability and rejection. Sharing a bed can create a sense of vulnerability and closeness, which they may avoid to protect themselves from potential emotional pain.
Emotional Affairs: Narcissists may engage in emotional affairs or seek attention from others outside the relationship. This behavior can lead to a decrease in emotional and physical intimacy with their current partner.
Emotional Detachment: Narcissists often have difficulty forming deep emotional connections with others. Over time, they might become emotionally detached from their partner, leading to a lack of interest in sharing intimate moments.
Shift in Relationship Dynamics: As a relationship evolves, the dynamics between partners can change. If the narcissist gains more power and control over the relationship, they might use this newfound control to distance themselves physically and emotionally.
It's important to note that each individual and relationship is unique, and not all narcissists will exhibit the same behaviors. If you are experiencing difficulties in your relationship and suspect that narcissistic tendencies might be at play, seeking support from a therapist or counselor can be beneficial in understanding and coping with the situation.