The Night Before Traveling

The night before I was about to show up, my roommate said that the photos my online boyfriend sent me were from the internet. "I am dating you online using pictures on the Internet. I must have low self-esteem and be too ugly to be seen!" The next day, my online boyfriend sent me a message: "Sorry, there are some last-minute arrangements. Can you wait for me for half an hour?" I breathed a sigh of relief because I had just been notified that there was an expert lecture. I heard that the visitor was a well-known big shot in the academic world. Knowing that he was coming to City S, the school spent a lot of money to hire him. I deliberately grabbed the first row and just looked up: Why is this person exactly the same as the "picture" posted by my online dating boyfriend?