'Teen Mom 2' Jenelle Evans Engagement Off After MTV Star Accuses Fiancé Nathan Griffith Of Cheating With A Girl Named Heather!

Teen Mom 2 star Jenelle Evans's never-ending drama with on again/off again fiancé Nathan Griffith has hit a new low with the MTV couple fighting yet again on Twitter and seemingly breaking off their engagement for at least the fourth time.

In a nasty back-and-forth that has now been deleted on both of their Twitters, Nathan first tweeted that the relationship was finished, but then had a change of heart and deleted it. When the reality mom saw this, she blasted her fiancé (maybe not anymore, who really knows at this point???), writing that he should go back to another girl that was in his life.

"Heather will make u happy again. Go call her like u have been all day. U were always an enemy, never a friend #TruthBeTold," the mother-of-two wrote.

In later tweets Jenelle railed against Nathan about him not liking her profile picture and then mocked him for keeping quiet.

Here are some of the other tweets:

As MStars News reported, the reality couple's relationship has been extremely volatile ever since they got engaged while on vacation in the Caribbean. A fight broke out, which was captured on video and put on YouTube, between Jenelle and Nathan's sister-in-law, Paula about charges that were put on the reality stars' credit card from the trip.

"[Paula] flipped out and yelled at Jenelle that she didn't deserve her kids, she would make sure she never got custody of her son Jace back, and that she would make sure Jenelle lost custody of her and Nathan's son, Kaiser," a source told Radar Online. "Then, [Nathan's brother] Noah got involved and started yelling with her that he would let Paula 'beat Jenelle's a--' and that 'Jenelle deserved to get her a-- beat' and 'didn't deserve her kids.' They kept dogging her."

"Nathan's brother, Noah, [a veteran], started making comments about Jenelle's son and how no one ever loved Jenelle," the source continued. "She got pissed and said something along the lines of, 'You know what? I wish you died in combat.' Jenelle also mentioned she heard his best friend died in combat. She didn't get to even finish speaking before Noah tried to attack her, attempting to run through security. This was after Paula had already tried the same thing!"

How much longer do you think Jenelle and Nathan's relationship will last? Is it time to finally say goodbye?