The answer to your questions would be social needs.
Belinda is using her interactions with Josie to fulfill her social needs.
Explanation:
As humans we all have both common and particular needs. One of our common needs is a need to socialize, called social need. Social need is the need we have to feel accepted, supported and feel connected to the people around us. Because of this, Belinda manages to connect with a friend and this fulfills her social needs.
Even though she doesn't like her very much, Belinda talks with Josie because it makes her feel less lonely. Belinda is using her interactions with Josie to fulfill her social needs. Belinda is using her interactions with Josie looking for communication not to feel lonely.
