2. The Red Sleeve - the ending of this drama is ambiguous and it's up to viewers to decide which ending was real - historically accurate or more fantasizing one. So, ML had a fever then he fell asleep and we saw his dream/flashback: he was young again, FL was alive, they spent some time in the garden, the scene we already seen in drama but a little bit changed. And the way it's was made, looked like he "woke up" from his life without her, like all those years were his nightmare and now he was with her. And his voiceover said something like: I don't care if it's a flashback,dram or if I died. I chose to be her with you.
3. My Dearest - there was a ML's line symbolized falling in love "Do you hear it? The sound of the flowers". We first hear it in the beginning of the ep1 when ML was surrounded by people chasing him. It looked like he was gonna die soon and it was his last thought. And them we returned several years back when the story just started and there was a moment when FL was swinging, he saw her and said "Do you hear it? The sound of the flowers". It was implied that he fell for her in that moment. So, I immediately started to cry, it was so big contract to the first scene, and the fact he thought about her in that moment...