Unless she confirms that it was an attempted kidnapping, it's all just a 'lovers' quarrel' that didn't mean a thing.  

There is a reason the legislature passed the law that lets hearsay come into evidence  in domestic violence cases.  Too many women go right back to the abuser.  

For a lot of different reasons.  Research 'domestic violence' and 'battered women'.  

"In abusive relationships, there may be a cycle of abuse during which tensions rise and an act of violence is committed, followed by a period of reconciliation and calm. Victims of domestic violence may be trapped in domestic violent situations through isolation, power and control, cultural acceptance, lack of financial resources, fear, shame, or to protect children."

https://en.wikipedia.org/wiki/Domestic_violence

 A waste of prosecution with an unwilling 'victim'.  "I don't  remember."  is a pretty common response.