Dear naíve lad. In most jurisdictions, outside of Iran, N.Korea, and Taliban-controlled areas, there is a little known facet of the law called probable cause.
Yes, Perry, anyone can be accused of DV. But police and magistrates seek proof, first.
An agitated perp outside his ex's home at 2 a.m. may be normal behavior in your family or hood, but in most of the U.S., it is probable cause,
argumentum in legal terms.
You must live in W.Virginia is or East Texas, where this type of situation is only a family spat.