I always forget someone’s face, what’s going on?

Maybe I like it (this is only limited to my situation)

The person I like will definitely not know what he looks like, but once I don’t like him, he will be confused. I remember a little bit, but I can't remember it when I like it. So the situation is that if you like one and forget the other, if you like the next one, you will naturally remember the previous one. Similarly, the boy I had liked for 3 years stood in front of me and stared at me. I felt like this guy was looking at someone for so long, and it was like 54, and it took him 3-4 minutes to react. But I always remember my figure, and I can easily find it in the crowd. Some people remember people by feeling.