It’s obvious that she puts value on the meer fact that she was speaking. It didn’t matter to her that the content wasn’t even memorable to her.
She was speaking, so it was important for her friend to listen.
She needs to get over herself.
In "Men are from Mars, Women are from Venus", the author explains some important differences. Men have lots of muscle mass, so they make sufficient serotonin. Women lack the muscle mass, so they engage in behaviors (communication, collaboration, cooperation) a.k.a. "talking" to make serotonin. Much of what comes out doesn't matter. It's just the act of "talking" that satisfies the deficiency. Men have a different problem. Not enough dopamine. Men "fix" that problem by watching something "exciting" e.g. sports, action movies or by engaging in a novel behavior e.g. pursuing a new hobby, idea or new member of the opposite sex. Men need a little "alone time" in the "cave" to engage in the dopamine building process. Men tend to be low on dopamine at the end of a work day, thus they head for the couch and turn on a sports program to "recharge" the depletion.
My wife often catches herself rambling. She smiles and says...just making serotonin. I try to listen attentively in case she is actually on a roll with content of value. That happens frequently enough. The gals need to flap their gums to meet their serotonin needs. I can live with that. Putting on some muscle mass can reduce the yammering. A little 5-HTP from the health food store will raise serotonin levels as well.