Look at the virtue signalling in r/dating why cant they admit that majority of people are shallow?

I'm a 23M and I've never had a girlfriend, I don't consider myself ugly, but I'm quite an introvert and that's why I had assimilated that I will never have a girlfriend (but because I always thought that women never start a conversation). However, right now I'm volunteering in a hostel and I work with a guy about my age who is a tall, thin, Brazilian model, the fact is that I realized something, when I'm in a common room, me and another girl (a guest from the hostel) they never speak to me (or look at me, it is as if they avoid my gaze), and many times they don't even respond when I enter the room and say “hi”, however, when my coworker is alone in the room, the girls in the room start talking to him and it's as if their face light up when they saw him.

In short, I was always wrong with women, it's not that they never start a conversation, it's that I'm ugly.

Edit: So this is why I decided to write this post, similar things have happened but today was blatant. My coworker friend and I were on a sofa talking, and there was another girl with a laptop in the same room, she didn't say a word. I got up to go shower and just walk out the door and when I close it, I start to hear the girl saying "Hi, what's your name, where are you from?" When I finished taking a shower, I went back to the room where they were both and shortly after my friend left the room to make a call, it was exactly the same situation, she and another person alone in the room, she didn't say a word to me (I wasn’t even looking at my phone, exactly because I wanted to force to see if it was just my imagination or is it because I look not interested because I use my phone), she didn’t even rise her head from the laptop, my friend came back from making the call, and after a while the girl got up to leave, she said "see you" with a big smile to my friend, I was on the sofa sitting next to him looking at her, she didn't even look at me when saying goodbye.