Her tweet seems to state that Jenelle blames her mother for getting Jace in the mindset where he would say such a thing rather than Jace for actually saying it.
Basically, any progress between mother and daughter may have been ruined.
Jenelle Evans’ tweet indicates that they were repairing their relationship as of late, and it sounds like the court decision that set a visitation schedule for Jace to stay with his mom on weekends, holidays, and during the summer was working for Jenelle until her son dropped the insult.