She obviously was swayed by CT's discussion with her before lockdown.The S4 seem to be okay with her choices, but she feels awful about them.
My opinion/strategy would have been to target CT for sure but throw Diane in too. Perhaps nominate Boogie and Diane and if either win the POV then put up Will.
That saves Danielle for James
Marci for Janelle
Erika for Kaysar
and
George for Howie.
Having these "partnerships" within the alliance is paramount to finishing with the original alliance intact. By putting up Kaysars extra "cushion", Janelle may be sealing the fate of the S4.