Most of the time we do not fully know the people who surround us or are very close to us.
Human needs to build a bond strong enough to advance to the next level.
Which generates in other people to show a different face to attract the person who interests them or attracts her attention and then show her true face.
In this world nothing is what it seems and we cannot take anything for granted.
The important thing is to realize it in time and move on.