AITAH for complaining to gym staff about someone?

For background info: I (17F) go to my local gym almost daily. There is a man who goes to my gym (maybe 48F) who always seems to want to converse with me. Last time, he stared at me smirking as I was trying to workout, so I gave him a rude look, hoping he’d look away but instead he told me I looked angry and said I should “take my anger out on the punching bag”.

USUALLY; I go to the gym with a gym buddy, but today I was alone.

Today while I was resting between sets, the man walked up to me from across the gym and spoke, but I kept looking down on my phone and I was listening to music. He walked away after I didn’t respond and did a set of hip thrusts.

After finishing another set; as I was resting, the man approached me AGAIN and I tried to ignore him. He did NOT walk away this time, so I paused my music and looked up at him. The man asked me if I was missing my friend this time, and if I came to the gym everyday, and why I went to the gym so often. He then proceeded to get on the LAT RAISE machine directly across from me….

I’m an anxious person and very hyper aware, and I took his questions as a way to figure out whether I was alone and vulnerable and when I’d be at the gym. I cut my workout short and left.

I was so upset about it, I was worried he’d follow me or something (he did not). I called the gym shortly after and told the staff I didn’t feel comfortable and did not want him to talk to me. She apologized for me feeling uncomfortable, told me she knew exactly who I was talking about, and let me know she had no issue relaying that to him.

After relaying this story to my brother who ALSO goes to this gym; I’ve been told that the man could be autistic or something of the sort, thus having a lack in social cues. I understand that, but I still feel like I should be able to workout without feeling anxious or unsafe.

note: I did watch him talk to other people as he made his way around the gym; I wasn’t aware that it wasn’t just me, so he really might just be trying to socialize and could be missing social cues.

AITAH for complaining to gym staff about this guy who may have some disorder and maybe didn’t intend to be creepy???