You were always ready to move forward with your relationship but Baekhyun was always hesitant. He avoided the talk about marriage for months on end until one night he pulls the question, getting on one knee. Your mistake was saying yes even when you knew he would never be ready. You just tried to convince yourself that maybe he could be mature enough with his feelings. 

Make wishes at funerals and the ghosts will hear you. And Baekhyun was all that you could ask for.