Now God sometimes allows people to treat us unjustly. Sometimes He even allows their actions to seriously affect our careers or our futures viewed on a human plane. But God never allows people to make decisions about us that undermine His plan for us. God is for us, we are His children, He delights in us (see Zephaniah 3:17). And the Scripture says, 'If God is for us, who can be against us?" (Romans 8:31). We can put down this bedrock f truth: God will never allow any action against you that is not in accord with His will for you. And His will is always directed to our good.
Why then do we suffer such disappointment when the hoped for favor that we needed from another person doesn't materialize? - Taken from Trusting God: Even When Life Hurts by Jerry Bridges
Whether it be a job, a friendship, romantic interest or family relationship, God is in the midst of it. We have nothing to fear and there is nothing anyone can do to us outside of His sovereign will for us. What a blessing to have this knowledge. We just all need to apply it, don't we?