Containment in a relationship refers to the ability of one person to provide a sense of safety and security for the other person in the relationship. It involves being able to "hold" whatever the other person needs held emotionally and mentally, and creating a sense of safety in the relational space. Containment is something that women need from men in order to feel good in a relationship, but it is not only natural for a man to give a woman that he is in a relationship with. It is something that is natural for a man to provide for any woman, whether she is his partner, a friend, a sister, a mother, or a daughter.

In a relationship, containment looks like being able to trust the other person to be physically, emotionally, and mentally present with us. It is a feeling of trust in the person, like a knowing that they have our back, they are with us, and we are on the same team. When a caregiver steps in with a regulated and calm demeanor, acknowledges and identifies the emotion, offers good care, and helps the child begin to regulate, what the caregiver is offering is containment.

In summary, containment in a relationship is the ability of one person to provide a sense of safety and security for the other person in the relationship. It involves being able to "hold" whatever the other person needs held emotionally and mentally, and creating a sense of safety in the relational space.