Maintaining contact with an ex can have both positive and negative implications in a relationship. On one hand, it can foster a sense of trust and openness, as partners demonstrate confidence in each other's ability to manage past relationships maturely. This can lead to better communication and understanding, as both individuals learn to navigate their feelings and boundaries. Additionally, if the ex is part of a shared social circle or has mutual friends, maintaining a cordial relationship can help avoid awkward situations. However, it’s essential to establish clear boundaries to prevent misunderstandings or jealousy. Ultimately, whether or not one is comfortable with their partner's contact with an ex depends on the dynamics of the current relationship and the level of trust between partners. Open dialogue about feelings and expectations is crucial for ensuring that both partners feel secure and respected.