Can you fake text messages though? Seems like a semi-competent examination would show the messaging account isn't his (presumably the hubby has his own set of texts that would contradict hers) unless the argument is that he uses a totally anonymous messaging system to harass her and a totally legit one to say things like "what would you like for dinner, sweetie?".
Granted, this is a war for the court of public opinion, in which case she is already deep in the hole just for her notoriety. Or she wants to do a rebrand and this is the excuse to do so. If she really doesn't have access to her Amouranth accounts she would presumably need to "get the word out" this way versus an email or video to all her subscribers because he can gatekeep those.
Ohhh, maybe she has been secretly hiding messages in her videos.
"Honey, I need to watch all this girls sexy vids in order to figure out the message and SAVE HER FROM ABUSE!!!"
Genius!