Just read through Psalms and see how many times David cried out in anger, frustration or depression toward God. Expressing those emotions is sending them at the only One who can deal with it and still love you completely.
"...for God did not send His Son into the world to condemn the world, but that the world might be saved through Him..."
"...rejoice with those who rejoice, and weep with those who weep..."
"...for the Son of Man came to seek and to save what was lost..."