You have probably read some of them and implemented what you learned from the book and, with some of you, what you applied did not work. It is easy to draw the conclusion that the book is wrong. The book may have been right and your application may have been right. Here is the principle mentioned earlier. I will call it saturation love .
Saturation means that the maximum has been reached.
A saturated solution means that the solvent cannot dissolve anymore solute. For example, if you continue to add and stir sugar into a glass of water, the water will eventually become saturated with sugar, meaning no more sugar will dissolve in the water. After the saturation point, any additional sugar will fall to the bottom of the glass - the water cannot dissolve anymore. Therefore, saturation love is quality time in great quantity with undivided attention, until the individual cannot take any more. It is possible to saturate someone with love so that any additional love is not received.