in order to have an emotional need involving another person, you first have to construct a simulacrum of them in your mind, and then establish a relationship between the simulacrum and your conscious self, and then come to believe that your safety or identity or w/e depends on properties of this simulated internal relationship. almost everyone does this in a fraction of a second upon meeting a new person, which is why the concept of "emotional needs" has been reified as if they are the same kind of thing as hunger
the idea that you have emotional needs is based on a misunderstanding about how the mind's representations works. this is unpopular because it sounds "unhealthy" etc but all the best stuff is on the other side of understanding this