My question involves criminal records for the state of: Florida

Long story short, an ex-g/f under the duress of her parents (we were 19 at the time) filed a stalking affidavit with the police department. I was never arrested and the prosecutor never filed charges. I was never even notified about what was going on. I found out about it because I was checking out a traffic ticket I got and that popped up on the clerk of courts site and took me for surprise. It says on there that no charges were filed but that the city police have an affidavit.

Does this show up on background checks (assuming they don't actually go to the website and enter my info)?

If this does show up, can this type of situation be expunged in Florida (i.e. no arrest, no charges filed)?