She got emotional.

And, as soon as Louis's eyes fell on the love of his life, he felt his heart skip a beat. 

His eyes teared up and their sweet memories flashed in front of his eyes. 

Their romantic nights, make outs during movie times, sneaking kisses in office hours.. everything just danced in front of his eyes. Those times have been so blissful that he couldn't help but miss those days. 

He missed her so badly that it became very difficult for him to control his emotions. Louis couldn't help but remember the morning on his birthday. She was sleeping so peacefully and blissfully that he didn't have the heart to wake her up. 

And, that was the last time he has seen her till now. 

Just that night before that day, Louis was so happy and that was his best birthday ever. But what happened that next morning made it the worst birthday in his life. 

He left her to suffer, he abandoned her and became the reason for her turmoils.