Burning bridges

[Justin Bieber]

The act of eliminating all possibility of return or retreat.

[Rihanna]

One of the worst experiences in middle to high school. To burn a bridge is to break away from a close friend, who you have consistently been on good terms and have had happy memories together. A simpler way: burning up your friendship or connections with someone important to you. A warning to anyone: dont do it. You will seriously feel down, and until that person (or even you) has apologized, youll both feel bad. It emotionally rips you, as a friend will start avoiding you, express anger at you, etc. until you tell them how youre feeling about this.
And dont think this doesnt happen at your school.
It does. It tears people apart.
Maybe some are striking a match, others with a wildfire, while others are completely disconnected.
Rebuilding bridges can take years, yet burning one could just take a day.

[Couch Potatoe]

unable to move on or get someone out of your head. you only want that one person and nobody else so there is no escape. theyre burning bridges to other people so its that one person or nobody for your two options.