Awareness of freedom and responsibility creates anxiety, which is also referred to as anguish or angst. Aspects of romantic attachments can relieve anxieties. For example, Mario Mikulincer et al. argue that loving relationships can act as a "death-anxiety buffering mechanism", since the sense of security, protection, comfort, self-esteem, and social validation that close relationships provide may serve as defensive devices with respect to existential anxiety about the threat of mortality.

The existentialists' view of love is not romantic, because they do not believe in love as an abstract force or amorous sunset walks along the beach. However, Cox also said, "if your idea of romance is somewhat more gothic and stormy, full of heartache, yearning and the thwarted desire to possess breaking up, making up and breaking up again, tears before bedtime and tears in the rain, then maybe it is romantic".

Peter Koestenbaum also elaborated on the importance of others, particularly romantic lovers, in the existential context. Love is the choice to create and reflect each other mutually, verifying and illuminating each other's uniqueness because this is how we learn that we exist and who we are. A key theme of authentic love is resistance between, but welcoming of, two independent consciousness acting like positive and negative magnets within a single magnetic field.