It's unreal how lucky you are to have your girlfriend in your life. She rushed over to your place after hearing you had a bad day, and spent the night trying to help you feel better. You even fell asleep cuddling with your head on her chest.
Being denied a much deserved promotion still stings, and it probably will for a little while. But waking up with your girlfriend still here and eager to spend time with you is the best medicine you could ask for.