AITA for 'interrupting' too much during an event?

Hi all,

I'm looking to ask some advice on something that happened to me today.

Some context to my story. I'm an Autistic/ADHD woman (27) who works at an Autism Advocacy company. There was an event this week that brought together a few Autism advocacy organisations and important stakeholders to discuss goals for the future of Autistic young people in my state. I attended this event along with my boss and my job was to look after a booth we had at this event, network and connect with other organisations staff and attend meetings with my boss to discuss plans with stakeholders attending.

The situation I'm looking for advice on is something that happened 1 hour before the close of the event on the last day. Up until this point I was really proud of myself, I'd put myself out there and tried forming connections and spoke to a lot of people from different organisations. I'd also attended upwards of 10 meetings alongside my boss with stakeholders. My boss had even sent me along to 3 on my own! I was feeling super proud of my effort and decided to make my rounds to add a few people on Linkedin when a man (40's? also Autistic) from one of the other organisations asked me to step aside for a chat. I'd briefly spoken to him. mostly in passing throughout the week when I walked past his organisations booth but had been part of a few conversations that included him over the past days so thought he might want to ask about something that had been mentioned then.

That was not what he wanted to say. He proceeded to tell me that I had interrupted dozens of conversations that week and he thought I needed to learn at being better at judging when to jump in. I was a bit shocked as I know I'm quite bubbly and had been talking to lots of people but hadnt noticed any uncomfortable situations that I thought he could be referring to. I responded that I appreciated his letting me know, that I wasnt aware that was something I was doing and that I'd try to keep a better eye on not doing that in the future. I thought that would be the end of it but he kept going saying he thought I needed to also learn not to 'pace' as it made people uncomfortable and that he thinks I need to be more aware. At this point I asked him if he had any idea about how I could adjust my behaviour when joining a conversation and he responded that he didn't know. After being berated for a bit I finally managed to excuse myself and said "I'll be back" as I headed towards the bathroom (to cry cause I hate confrontation) and he responded "oh, I'm sure you will be".

The worst part about this whole thing is that this was definitely in earshot of some of the new contacts I'd made and my boss was only 5 or so feet away. I have no idea if my boss heard any of it but I was so embarrassed that I pretty much didnt leave the bathroom for 40 minutes until a friend who was at the event found me. She told me she didnt think I was doing anything wrong and that he was mean to saying that but the Linkedin connect requests to some of those people who were in earshot havnt responded yet even though they have been posting and commenting on LinkedIn since then.

I just want to know if anyone has any advice or thoughts on this situation. I'm so embarrassed to see any of them again and I'm worried my boss wont take me to events like this again if he heard what that man said.