Lily is number two most important fellow numbered next to Jasmine, and pretty much only because she's actually dating Jas - otherwise they'd be equal. While she gels with Jasmine's sense of humor and has a little more fun just casually chilling with her, Lily is someone who Marina thanks for a lot of her personal development. At first she was sort of just pretending at friendship with nice people for her own safety, but she's bad at not turning pretend into reality and Lily, while a huge dork, isn't a pushover and isn't a total girl scout. Getting some positive acknowledgement from a friend for behaving well did a lot to improve her behavior and she's realized it.

All that aside, while Lily isn't a party girl, Marina's smarter than she thinks and actually appreciates some of what Lily talks about, enough to enjoy just chatting about whatever. Also, embarrassing Lily is a blast.