Individual personality traits can significantly impact how one navigates through Duck's Phase Model. For instance, in the intra-psychic phase, a person with high neuroticism may experience more intense internal conflicts and negative thoughts about their relationship, potentially accelerating the move to the dyadic phase. Conversely, individuals with high agreeableness might strive for longer to maintain harmony, delaying the progression to the dyadic phase. In the dyadic phase, personality traits like openness and communication skills play a crucial role in the quality and outcome of discussions between partners. During the social phase, an extroverted individual might seek more external support and have a wider social network to rely on, which could influence the public perception and social realignment following the breakdown. In the grave dressing phase, resilience and coping mechanisms, deeply ingrained in one's personality, will dictate the process of narrative creation and recovery. Therefore, personality traits weave through each phase, influencing the experience and management of relationship breakdown.

Attachment styles, developed early in life, play a pivotal role in how individuals experience and react during each phase of Duck's Phase Model. For example, someone with a secure attachment style might handle the intra-psychic phase with more self-reflection and less anxiety compared to someone with an anxious attachment style, who may experience heightened distress and insecurity. In the dyadic phase, securely attached individuals are likely to engage in more constructive and open communication, while those with avoidant attachment might shy away from deep discussions, potentially exacerbating the relationship issues. During the social phase, the secure attachment style could facilitate healthier support-seeking behaviours and a more balanced view of the breakdown, whereas an anxiously attached person might seek excessive reassurance from their social network. In the grave dressing phase, the securely attached individuals are generally better at processing the end of a relationship and moving on, compared to those with insecure attachment styles who might struggle with longer-lasting effects and difficulties in forming narratives that foster personal growth.

Duck's Phase Model, while primarily focused on romantic relationships, can also be applicable to non-romantic relationships such as friendships or family relations, with some modifications. The intra-psychic phase, involving personal reflection on dissatisfaction, can occur in any relationship where an individual feels discontented. Similarly, the dyadic phase, which involves addressing these issues directly with the other party, is a common step in the breakdown of all types of relationships. The social phase, where the breakdown becomes more public, is also relevant in non-romantic contexts, as friends and family are often involved in and affected by the deterioration of any significant relationship. The grave dressing phase, where individuals come to terms with the end of the relationship and create narratives about it, is a universal process that applies to all forms of relationships. However, the intensity, dynamics, and specific issues addressed might differ based on the nature of the relationship.

Cultural context can greatly influence how individuals experience and navigate the stages in Duck's Phase Model. Cultural norms and values shape views on relationships, communication styles, and the acceptability of relationship dissolution. For instance, in cultures where collectivism is emphasised, the social phase might take on greater significance, as the opinions and reactions of the wider community can have a more profound impact on the individuals' decisions and public standing. Additionally, cultural attitudes towards gender roles and relationship expectations can influence the dynamics within the intra-psychic and dyadic phases. In some cultures, open communication about relationship dissatisfaction (as seen in the dyadic phase) may not be customary, potentially altering the trajectory of the relationship breakdown. Furthermore, the grave dressing phase can vary culturally, with some cultures providing more socially structured ways of coping with relationship breakdowns, such as rituals or specific mourning periods.

The presence of children can significantly influence the process and experience of each phase in Duck’s Phase Model. In the intra-psychic phase, parents may experience additional stress or guilt considering the impact of their relationship dissatisfaction on their children, potentially leading to a prolonged phase or more internal conflict. During the dyadic phase, discussions about the relationship's future might become more complex and emotionally charged, as the well-being of the children becomes a central concern. The social phase might involve additional considerations, as parents might be more cautious about how they seek support and manage the public aspect of their relationship breakdown to protect their children. Additionally, the involvement of children can lead to a more extensive social realignment, with friends and family possibly playing more significant roles in providing support. In the grave dressing phase, the narrative creation and recovery process can be more challenging, as parents have to reconcile with not only the end of their romantic relationship but also with how it affects their role as co-parents and the family dynamics. The need to maintain a functional relationship for co-parenting can add a layer of complexity to the recovery and moving on process.