Under this law, assault consists of

1. “intentionally, knowingly, or recklessly causing bodily injury to another” 
2. “intentionally or knowingly” threatening another with imminent bodily injury
3. “intentionally or knowingly causing physical contact with another” that the victim will regard as offensive or provocative

These acts can include the alleged offender’s spouse. 

Per the second definition, you can be charged with simple assault through threats without actually making contact with or harming the alleged victim. Per the third definition, you can be charged with simple assault by merely making physical contact that is “offensive,” such as poking the other person in the chest. This is generally charged as a Class C misdemeanor that carries a fine only of up to $500.

However, you can be charged with a Class B or Class A misdemeanor in other circumstances, such as if the alleged victim is disabled or elderly or if you caused any type of bodily injury. 

Class B misdemeanors carry up to 180 days in jail and/or a fine of up to $2,000. Class A misdemeanors carry up to a year in jail and a fine of up to $4,000. Furthermore, Class A misdemeanors could increase to third-degree felonies if you caused bodily injury to a public servant, firefighter, EMT, pregnant person, or other specially protected persons. If you cause bodily injury to a police officer or judge, you can face a second-degree felony.