Trust is something that u build..
Like a building, how high u want to build the building??
That's almost the same like how high u want people to trust u..
The higher u build the building, the stronger u must build the foundation..
When u have already build a gigh building, wihtout make a strong foundation, when the the storm come, it won't be strong enough to face the storm..
Like trust...u need to assure people that u are trustable..
HOW??
Not only by words, but by action..it's useless for u to say 1001 words, but none of them is accomplished...

What's left when u can't trust someone??

Nothing's left there..
But at least you can stand with that person for care..

Will u still be able to care for someone if u can't trust him anymore??

Yes, We'll be able to..
at least give ur care for him, to be able to be trusted by someone else, teach him to learn something from ur untrustable..
someone who can not do what he has promised/said is someone who needs help..

anykind of helps..
until someday u see him healed..
it's his time to stand and walk by his own foot..
with his strong foundation..
like a high building with the strong foundation..
and finally, u can trust him also, cause he will already have strong foundation at that time..