Someone would prioritizes their values because, when you make decisions, you have to think about your values. Your values might help you decide what decision to make and maybe which one is better. It would also help the person see what is important to them and which one goes with their beliefs.
The artist might be trying to convey that the subject of the song has been in love with the singer for a while now but the subject is too shy to admit it. Hope this helps! :)
