She says she isn't a homophobic then proceeds to yell at everyone ┑(￣Д ￣)┍

shes not homophobic she is just shocked that everyone kept a giant secret from her and shes the only one that didnt know

I agree with meowmura, she seems more upset about them lying rather than the fact that they are all lesbians. Also she saw them about to fuck while the their boss, which was also her bestfriend, is missing/dead. I'm more disturbed about how the co-workers can have sex knowing someone close to them is probably dead, unless they know smt about the whereabouts of the CEO.