For the very same reason it may be hard to earn, it can also be hard to give. Especially if there have been events in ones life that has/have left scars on ones emotions.
The more trust a person shows, the more they expect. Once it is broken, the levels can drop. It may become hard to show more trust than one has received. Fear steps in and that may lead to a lack of trust in others.In some cases it may be undeserved.
The problem is if you show a lack of trust in some way, for some reason. You make it hard to earn it. Standard thinking seems to be, if you suspect someone of doing you wrong, you have probably been disloyal yourself.
Problem: It appears to me, even the most trustworthy person has a hard time showing trust once they feel they have been rused.
It can turn into the ultimate battle of wits with yourself. If you feel you cannot trust your partner. It may be because deep down you know you are not to be trusted.
Solution?: I say trust in others as you would have them trust in you. If they blow that faith then move on with yourself and your emotions.
I think this will make a good theme for my nest radio show. blogtalkradio/Ramblinman It will air at 9:30 am pst. Wednesday morning. If you wish to call in and comment, debate, or even change the subject the number is 323-443-7258