On the Wedding Day, I Returned My Boyfriend to His First Love

Chen Dong and I have been in a relationship for seven years.
A week before the wedding, I discovered a post on his computer.
It was then I realized that Chen Dong had secretly loved a girl for ten years.
They had planned to see the aurora the day before Chen Dong's wedding.
I quietly watched Chen Dong's performance and booked a flight to go abroad on the day they left.
Seven days later, the grand wedding began, but as the bride, I was nowhere to be found.
After traveling abroad to clear my mind, I learned that Chen Dong had resigned and was waiting for me outside my apartment every day.