Creepy guy want to go inside my new apartment

I’m still shaking as I write this because I just had one of the most terrifying experiences I’ve ever had since moving into my new apartment in Japan. 😭
It was around 4 a.m. when a man tried to get inside my apartment. He was holding a flashlight and was actually shining it inside. According to my boyfriend, the man had already gotten so close that it looked like he was about to enter my apartment.
Thankfully, my boyfriend was with me that night and happened to still be awake. He immediately shouted at the man, and the moment the man heard his voice, he ran away.
I woke up and asked what happened, and when my boyfriend told me what he had just witnessed, I was completely terrified. 😭
What scares me the most is thinking about what could have happened if my boyfriend wasn’t there.
I was actually upset with him earlier because he was playing a game instead of sleeping, but now I’m just incredibly thankful that he was awake at that exact moment. 😭❤️
I keep thinking:
What if I had been alone?
What if he had actually gotten inside?
What did he want from me?
Why was he trying to enter my apartment?
And what if he comes back again?
Those thoughts have been running through my head over and over, and honestly, I’m still scared to be alone here. 😭
I’m a foreign woman living alone in Japan, and this experience really made me realize how vulnerable I can be, especially in the middle of the night.
Has anyone else—especially foreign women living in Japan—ever experienced something similar? What did you do afterward, and what precautions did you take to make yourself feel safe again?
I would really appreciate hearing your experiences and advice. I’m honestly still shaken by what happened. 😭