The way she handled the situation in the kitchen, talking about Alex, got my nod of approval. She personally witnessed something in Alex (homophobia perhaps?) that the others apparently didn't, so she stood her ground without having to justify herself, which would necessarily involve publicly berating Alex, and in spite of enormous pressure from the other HMs.
Thankfully, Kav was dumb enough to suggest she take the 'moral highground' (ie, agree with them),

which gave her.. a push in the
right direction. Good one Nadia!