a person walking on a sidewalk

I had 3 friends by my side when this photo was taken. Among them are a couple of boyfriend and girlfriend, and a single man named Shimada. In the next six months, the woman in the couple gradually fell in love with Shimada. Not long ago, the woman planned a lot and finally broke up with the man and became a boyfriend and girlfriend relationship with Shimada. Shimada used to be a man's friend, but not anymore. :) I'm just a bystander, like a passerby in a soap opera.