The mere exposure effect, also known as the familiarity principle, states that the more we are exposed to something, the more we come to like it. This applies equally to both objects and people (Miller, 2006).
https://en.wikipedia.org/wiki/Mere-exposure_effect
We should be careful who we associate with. This goes for girls spending to much time in the company of males and building a romantic connection. It can also go for any situation where the more we are exposed to something good or bad the more we tend to accept and like it. Even if it is bad.
We should all be aware of the Mere exposure affect.