She loves a good revenge plot, and typically Phyllis doesn’t stop until she gets what she wants.
She’s given everything to this pointless feud that’s gone nowhere.
Phyllis' hardships stem from her inability to get out of her own way.

Phyllis gradually became more emotionally volatile as her loved ones pulled further away.
She ruined her life for nothing because Diane hasn’t slipped up.
The only thing that mattered to her was keeping control of The Grand Phoenix Hotel by any means necessary.

Diane offered Jack a more stable romance.
For a while, it worked.
They expertly planted the evidence, and Diane’s previous track record made it believable.

However, the first mistake Phyllis made was confiding in her children.
Once Phyllis committedJeremy’s brutal murder, things unraveled even faster than before.
Even in her darkest hour, she needs to ensure she tells everyone that Diane has done worse.
Phyllis can’t take accountability without placing some semblance of blame onto someone else.
Who does that to their own children?
How can anyone feel sorry for Phyllis after seeing her repeatedly only take her own feelings into consideration?