I thought I was being followed on my way home last night and it scared me a lot

I just got home and my heart was racing. Since I got off the metro bus, there was a guy behind me who kept pretending to talk on the phone, and I couldn't tell if he was watching me. I mean, it could have just been a coincidence, but I got so scared that I had to go into a shop and wait. It's like we're really afraid to walk alone on the street now. When is this fear going to end?