This is called a one-sided relationship, where one side is putting everything in to make it work, and the other side just doesn't bother trying.
The relationship is a type of symbiosis called parasitism.
If it is sexual, it is called a heterosexual relationship.
A relationship in which one organism depends on another is called a co-depending relationship.
Preportional representation is a voting system designed to ensure that the representation of political parties in a legislative body closely matches the overall vote share they receive in an election. It aims to provide a more accurate reflection of the electorate's preferences by allocating seats based on the proportion of votes each party receives, rather than using winner-takes-all methods. This system is often used to enhance democratic fairness and encourage a multiparty system.
Friendship
It's called a parasitic relationship.
A father and son relationship is called a paternal relationship.
Yes
The constitution established a relationship between the state and national governments in the preamble of the constitution. The relationship is called new federalism.
Relationship between three countries or 3 sides is called as tripartite relationship
Husband and wife relationship is called a marriage.
It's called "in a relationship".