No absolutely not.
In my opinion she doesn't actually have a defined mental illness. Her behaviour, however, will inevitably result in her children suffering in later life. If anything she has an addiction to her online life, the instant highs it gives her is similar to a substance addiction. Followed by huge lows that then need to be stopped by repeating the same content to give her the flooding of adoration and attention. She is deeply unhappy. Narcissistic, attention seeking (this will go back to her own up bringing) insecure, incapable of telling the truth (which is again another huge characteristic of an addict) and WILL never be happy until she addresses so many things which could be done through talk therapy. In my Opinion