Trust

straight shooter

Meaning: someone who speaks the truth

Example: I really like Ken. He's a straight shooter, that's for sure. Read on

count on

Meaning: it means that you are able to depend on somebody or something

Example: It doesn't matter what happens, you will always be able to count on. Read on

stab in the back

Meaning: a disloyalty

Example: I have done everything for her, but she left me because of that guy, she stabbed in my back. Read on