Would my German wait a year knowing he wouldn’t find me?

Wait, I'll try to summarize:

I (26 years old) am a chef at the Hilton hotel in Tulum, Mexico. I was at the buffet serving guests when "Leon🇩🇪" (around 25 years old) approached me for tuna. He was the LEAST GERMAN-looking guy I've ever seen, very smiley and cute. He told me they were from Germany, and I happily replied with exaggerated gestures because I'm very expressive 😅. He came back about three more times for tuna (the slices were very small and nothing special, just salt, that's it; he mentioned that he loves fish).

At the end of the day, he and his brother came looking for me and gave me a $5.50 tip. I tried to refuse, but he insisted and wished me a happy new year in English, but I couldn't understand. His brother (18 years old, a German through and through 😑🇩🇪) took out his phone and helped us translate.

I'LL SUMMARIZE EVERYTHING HERE:

We saw each other for 5 days. I gave him a handwritten letter wishing him and his family a wonderful time with the fireworks because I wouldn't be able to this year 💔 but he could, and that's a blessing. I also mentioned that he could come get all the tuna from the hotel, and if he wanted 100 cans, I would prepare 100 cans for him and his brother. One day there was no tuna, so I secretly got him some and told him it was a secret 🤫 (in terrible English).

The second letter gave him recommendations for the other 8 restaurants in the hotel where he could find better fish and tuna.

He always came back with his dad and brother at the same time. He wished me a happy new year many times, and one time he talked a lot, but I didn't understand him, and he got so nervous that his German accent came out, and I thought he was yelling at me 😖. I got up from my stove and stood in front of him (HE WAS REALLY TALL, EVEN THOUGH I WAS SO CLOSE TO HIM 😨) to tell him I didn't understand, and his brother helped us translate again with Google.

The next day he wished me a happy new year, but this time in Spanish, and I screamed with excitement at his effort. He did everything in front of his family.

I couldn't see him on the last day because I was resting, but he left me this letter. We didn't exchange contact information because we never knew it would be the last time we would see each other.

What does this mean to a German? 🥺He would WAIT a year to come back for his end-of-year vacation and have the chance to see me again🥺?

And HOW CAN I FIND HIM ONLINE? I ONLY HAVE HIS FIRST AND LAST NAME, BUT HE DOESN'T APPEAR ANYWHERE!!!!! I'd even pay anyone who helps me find his contact in Germany. I really want to see him again 😭😭😭😭😭😭😭😭💔💔💔💔💔

He wrote the letter in Spanish so I could understand it, and it says: "My family and I are leaving tomorrow. Thank you for everything. Your fish was the highlight of our trip. I loved your letters and hope to see you again sometime. Leon Miles"