Many people were skeptical of her decision to move quickly from Courtland. Since she was still married and had to be married for a year before being able to file for a divorce, many thought she was cheating on Courtland by dating Nathan Griffith. However, Jenelle took legal steps to get a separation before dating Nathan.
"That would be considered adultery IF I wasn't separated from him and I would be in jail lol," she revealed, adding, “I was separated legally from him the day we got arrested. He knew it was over." After getting out of jail and watching the trailer to the new season of the show, Courtland was shocked to learn that he was expecting a child with Jenelle before she terminated the pregnancy.
source examiner.com