If she's going to make you wait for an answer, that is just plain rude. However, maybe she lost her cell phone (unlikely), it broke (possible) or she lost her charger (possible). Either way, if texting doesn't work, call her. More people will ignore texts when they are busy, but they will answer a phone because a phone call could be important, while texts are generally just unimportant small talk.
Warning: never put your cell phone in your shirt pocket. Because when you lean over to flush a toilet, *plop*, the phone can fall into the toilet.
I have a long time interest in psychology, specializing in relationship dynamics for 30 years.
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