What is trust?
It starts happening between the two. The trust is not a bondage but knowing each other without confirming the third. A third is always a disturbance. If the wife suspects her husband is having an affair. If she brings the third woman into the argument. The trust is broken, the third person will occupy their life and the third will appear in all future conversations or in relationships. 

Why? We fear someone will breach our trust. We have to believe trust is nothing but relationships. A third person enters only to disturb the good relationship. The world is full of jealousy, it will watch you and disturb your relationship unconsciously. Suppose you are loyal to your husband. the loyalty gives rise to those eyes which are surrounding you to invade to test the trust. Some people get carried away into the new relationship and finally mess up their present situation. 

Who is the third? Your shadow, the suppressed desire always peeps his head from nowhere throughout your life. Even the best life has some missing pieces. This missing always appears in our dream and sometimes you search unconsciously and make it appear in a new person you just met and drag yourself into it. The missing element actually is not the one to be searched outside but inside. We are always dragged into something which we don’t have and if you have then those will not quench the real thirst. Then you come to know, it is artificial not natural.

We search online by buying certain items thinking it will fill the missing piece. You crave for something outside, we are taught to be that way. Especially, when you forage online at night. Where your primitive brain was so active and fell into a prey. You have to believe that what you need is within you. first find out what you want and then proceed otherwise it will breach the trust in your character.