Oh yes Pandora told me about Dhivael and Nagi rooming together! Oh Carly will be so confused by her. Expect a lot of references to famous alien movies and blatant species-ism. "This is called a fork. You eat food with it." Also she might ask inappropriate questions about egg sacks.
The other two seem awesome as well! Well like I said, Carly will be abusing technology. Hell, if she sees one of your other girls on a phone, she might be like "YOU HAVE A PHONE? I HAVE A PHONE. LET'S TRADE NUMBERS AND I CAN TEXT YOU."