Katyusha didn't ignore her -- in fact, she smiled brightly and complimented Phoebe's name. Despite turning even more red from her kind words, a small smile spread across Phoebe's face as she looked away, giving a quiet 'thank you.'
Someone placed their hand on the girl's shoulder, causing her to flinch slightly. She looked timidly at the new girl, as she told her everything would be fine. Of course, Phoebe knew that the girl had no way of knowing that for sure, and was likely just saying that to put her at ease, but she appreciated the gesture immensely. Phoebe smiled at the girl and gave a quick nod, before lowering her head again as the girl addressed Katyusha as though they were old friends.
Her smile, hidden under her hood, persisted as she listened to the two of them interact. They were really kind, she felt, as both had gone out of their way to help calm her down. And they both seemed strong and confident, too, being able to think straight in this situation.
Katyusha asked Phoebe if she knew how to use the weapon she was holding, pulling out of her thoughts. "Oh, um, not really..." she answered. In response, the older girl quickly went through the basics. Phoebe really didn't want to use the gun, but she listened anyways, nodding when Katyusha was finished. "O-okay."
It was then that the two pilots who had run out of the room were thrown back in by a Spartan, bringing with them a Cruxi. Her smile faded, being replaced with muted fear as she gasped and backed away, unable to tear her eyes from the fight that had broken out between the monster and Spartans. She no longer had control of her body, her gun hanging uselessly at her side. Even if she had wanted to, she was no longer 'with it' enough to use it. A beast like that, in person and so close to her -- if it got to her, she was dead. There was nothing to be done but hope the other people in the room, those far more qualified than her, would be able to take care of it.
At some point during the scrap, she had removed her right hand from her pocket and grabbed on tightly to Katyusha's sleeve. Even after the Cruxi had been killed, she held on and simply stared at the brutally injured Spartan who had saved them. She was aware of the other Cruxi trying to get into the room too, but she didn't want to think about it, she didn't want to deal with more.
Something like a whimper escaped her throat when she realized the injured Spartan was going to die, once again to buy the pilots time. Why? From the sound of it, it seemed like more people would give their lives to see the pilots out of the facility. Why? She was useless -- she couldn't shoot a gun, she was already breaking down, she was just a weak child. Why were trained super-soldiers giving their lives for her?
Phoebe completely shut down, and was now entirely on a terrified and mournful auto-pilot, simply holding onto Katyusha and following her. Her hood fell off as they ran, though she let it be -- she hardly cared about hiding her face in the state she was in.
She barely even registered the Frameworks and the Izanagi. All she focused on was pathetically clinging to Katyusha and tuning out the rest of the world.