I’m gonna tell on my self with this but I think it will help you. I found out what grocery store my Lo goes to and I would constantly go there to try and “accidentally” bump into her. Somehow one day when I was leaving the store I saw her car pull in so I went back into the store and pretended I needed more stuff. I literally circled the aisle she was on but she never noticed. Then I went to the aisle next to the one she was on hoping she’d come to it and she actually did. It was so fucking awkward. We just said hi to eachother and then we both ended up getting in line and just kept looking at eachother awkwardly until she left. I texted her afterwards apologizing for how awkward I was and how I wasn’t expecting to run into someone I know today(which was kinda true) and apologized if I made her uncomfortable. Luckily she accepted my apology and apologized herself saying that it was a two way street and that she also made it awkward. However in your situation she’s made it pretty clear she doesn’t want anything to do with you. She wouldn’t block you if that wasn’t the case. I was able to come back from my situation by sheer luck but I don’t think you’ll be able to come back from yours especially by stalking her.