The self-fulfilling prophecy effect is at the beginning of a relationship.

The self-fulfilling prophecy effect must be Stronger at the beginning of a relationship.

Explanation:

The self-fulfilling prophecy is stronger because

Self-fulfilling prophecy is defined as an expectation of an individual who holds his future event that display because the individual is holding it.

self-fulfilling is predicting something and if that happens because he believed it would happen.  

So it is very important in any relationship or to oneself.

example: when it comes to a friendship, predicting and believing that he / she will be with them throughout their life.  

tbh idk same thing here