Surely, trust is the basis of any relationship be it marriage or anything. I just don't understand how people feel content after deceiving the one who loved them the most.

In many cases, when people move to other locations to get a nice job, they need to leave their families and friends behind. The one who is a trailing spouse starts feeling neglected and useless without any job and this is another point where the bond and love between them start fading away. I believe, there is a clear link between a trailing spouse and divorce and it is attached with deep relocation depression.