Toni has been in a bad mood for two weeks, has no interest in anything, problems with sleep, and difficulty with concentrating. toni also doesn't like doing activities that she used to find fun. toni most likely has

Toni is likely to be engaging in major depressive disorder. This is where an individual is depress and likely to experience symptoms such as having low energy, low mood, lack of interest, and loss of appetite in which Toni is likely to be experiencing based on the scenario above.

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.