This sounds to me like the old "I need money for the hospital because my girlfriend a few blocks over tripped and broke her leg in my apartment" scam that you'll see some people use to get money out of unsuspecting tourists. I probably would have left too, and I'm blind :)
Like ...sorry but you violating my personal space and deciding I'm your help for the day doesn't exactly put you in my good graces and if you are that dependent on help on others I have questions on how you got where you currently are standing. This sounds extremely suspicious all round.

That's extremely weird and not normal blind person behaviour at all. I guess someone could be in a really desperate situation and not handling it that well. Some people are weird, and some of them are blind too, but I would rather be late for almost any appointment than do that. Yes, I've occasionally had to yell at rooms to see if there's anyone in there, but grab someone without having received verbal agreement beforehand? Not once.

It would take a really unlikely series of screwups for any sane blind person to even be in a situation where that was necessary. Having to grab a random person to help out is pretty much the ultimate disaster scenario, it's the last thing anyone wants to do. About as close as I get to that is getting on board a train and asking if anyone's sitting next to an empty seat, and that's if the staff have forgotten, because I'll have called ahead.

I might have tried to calm her down a bit first and get a bit more of the story. If it's that much of an emergency, then she should know exactly what bus she's supposed to be on, when it leaves and where from, which is presumably reasonably soon and reasonably nearby, or she wouldn't be freaking out. It should be reasonably easy to solve that sort of problem. If she doesn't know those things it all starts becoming a bit suspicious.

I’m not sure what you could’ve done in that situation, but that was really rude of the woman. I would’ve just asked something along the lines of “Is the bus stop for the such-and-such bus” or ask what bus stops at that stop.

That is not how things are supposed to work at all

That’s pretty sus. If I need help, I ask. Now sometimes that means saying “excuse me” loudly in the general direction of people and hoping someone notices me. The most I might do is tap someone on the arm or shoulder to get their attention (just like anyone).

Whatever this person had going on, it’s not really a blindness thing. It makes me think maybe there was a mental health issue there, or even something more nefarious. That’s not normal behaviour for a blind person.

As for what to do, if you could see the bus stop, you could give directions (“it’s about fifty feet in front of you”, not “it’s over there”), or led them there. The bus driver on the next bus would be able to direct them from there. Although, I think it’s also legitimate, since the person was clearly making you uncomfortable, to extricate yourself and just say, I’m sorry I can’t help you.

Sketchy AF.

Its a con.

Hi, I know how to catch a bus, so my reaction would have been to give dirrections to where the bus stop is located. Sometimes there is a bench with a hut and other times there is a pole on the sidewalk with the image of a bus. As I'm blind, rather than cling on to someone I've asked if they could tell me where the sign is located.
The bus won't stop if the driver does not see someone standing by the pole. You wouldn't have had to stay with the person.

Normal: Person who is blind, if they need help, asking someone nearby. Normal (for blind/low vision) includes banging into people accidentally, where they have wandered into "your" bubble by mistake.

Abnormal: Grabbing onto a stranger (blind or not) - incredibly sus. My first thought is that it is a scam / pickpocket attempt / way to get you into an alleyway for a proper mugging. It may have been legit (if so, then ENTITLED AF), there may have been some mental issues, but I have never seen that behavior in 14+ years in this field.

Good. I’m completely blind and have people “help” me by dragging me across the road so know how annoying people can be.

That’s not the norm. I would get them to someone that could help. I know that it might be out of the way, etc, but I definitely wouldn’t just shake them off and keep moving. They could be in trouble.