My question is, am I really responsible if someone kidnaps her between getting off the Uber and getting into our apartment complex?
Only if you were involved in the kidnapping, like paying them to do it.
Is she trying to guilt trip me into thinkg her anger is justified or am I really a horrible, kidnap-facillitating bad person for missing a few texts?
She is trying to guilt trip you for missing her text by using emotionally ever the top hyperbole which is not gaslighting. Gaslighting requires intentionally lying about something that did not happen to make you question your own experience.
This is a gen x complaint. Boomers would just ask their kids to set it up because they can’t get it to work. Gen x realizes what is going on and that it is bullshit to need an account for a fucking lightbulb.