Ragini seems to be extremely jealous of Anupama. In the confession room after declaring that she had not fallen for Aryan she then spent the entire time talking about Anu & Aryan's relationship and making digs about Anu's age.
Anu can be irritating the way she keeps whining but that's about it. I like how she holds her own against the guys instead of pandering to them. I also enjoy the way Aryan follows her like a love sick puppy similar to the way Ravi follows Carol. But yes Ravi and Carol have more chemistry b/w them than Anu & Aryan.