Nathan Griffith is back at it again! The former Teen Mom 2 star — and Jenelle Evans‘ ex-fiancé — is slamming the mother of his child (again), this time for putting their son, Kaiser, 3, in danger. Watch the video below to find out why the 25-year-old is under fire.

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On Sunday, Nathan posted screenshots of a conversation he had with the “SheDevil” on Twitter. In the text exchange, he wrote, “That’s not what the mediation papers say. Once again, Jenelle, they are court order. And I can call Kaiser at specific times as well. If not, once again, proper measures will be taken. If you have any problems with this and want advice, stop battering and bullying people and learn how to get along with people. It makes life a lot easier.” He continued, “… Toddlers about 2-5 [years old] are just learning tangible words that can be associated with a physical action or thing. Please stop feeding my child words like ‘mean.’ Just last night, we were talking about you and I told Kaiser, ‘Daddy loves mommy because she’s your mom.’ I feed positive stuff to him about you. And I wish you guys would do the same.”

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Earlier this week, Jenelle did some social media ranting of her own. The star went off on a scathing review of Nathan’s girlfriend, Ashley Landhart — who is an employee of a drug addiction treatment center. She wrote on Facebook, “DO NOT GO HERE! Make sure Ashley Landhart is not your addiction counselor. I had to report her for accusing myself of being on drugs and my fiancé. This counselor got on social media posting horrible things about myself.” Yikes. Sounds like these two need to get it together — and possibly disable their social media accounts — for the sake of their son.

Teen Mom 2 airs Mondays at 9 p.m. EST on MTV.

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