It looks like she gets company of a girl. This baby has to be bi at least.
I think Anita, like many women, is not interested in sex itself or having an orgasm but in the power of her femininity over men. Therefore she pestered 'ladybird', giving him a super blowjob and then heating him up and at the end refusing sex. Supergirlpower! She does not masturbate when/if her position in VV is safe. She is not prude either and had no problem with the triosex of Tuesday but no pleasure either.
I've now listened to the threesome and got the impression that BF already argued with Carmen in a loud voice before he entered Anita. It is not much more than an impression because almost all the Russian males (Alex, Ivo) have very deep and loud voices with, to our ears, a angry undertone.