13 (F) me and 13 (M) guy I went to my home country for vacation and when I visited my grandmother and my older cousin I didn’t realize this guy had a CRUSH ON ME?? HELP T_T

I’m 13 (F) and i went to my Home country Six months ago and for the first two weeks me and my mother went to my Grandmother and grandfather‘s city I went to meet my Grandmother and my Older cousin and as we stayed there I was often Reading a book, eating, traveling around the country side and going to the beach with my family, and Id often day dream about how “how fun would it be to have a guy actually fall in love me with me as I was here?” FOR FUN. so I assume you read this Title so you know what happened but I’ll go from the start in Detail. me, my mom, my grandma and older cousin came back from going to the bakery because I really wanted to eat my favorite sandwich only they made and when we got into the neighborhood i went to our house on the second floor and I was whining to my mom “Mom I’m so tired! I can’t wait to just started eating these!” and then I just casually walked up the outside Stairs to the second floor and when I arrived I thought nothing more do it and sat down and started to devour my food without noticing that A boy next door, 13(M). (Let’s call him Leon for the sake of the story bc idk his name) he was talking with the building security man and then when he saw me he turned his head and just watching me go up the stairs. So REWIND. when me and my mom first arrived my mom sent me to go take some lemons from the lemon tree outside, me and my older cousin went and got the Lemonds. At that time the Leon first saw me and I guess “fell in love“??? So then he just watched me and my older cousin see that we had no more Lemons and just went back inside. For those 2 WEEKS, EVERY SINGLE DAY he would come back from school talk to his friends or the security man outside and then just wait to see me pop my head out from my Room and when I did he would stop talking and watch me. He would smile at me and wait for me to wave Hi but I never did because I DIDNT KNOW HE EXISTED. so anyways after me ,My mom, my younger brother came back to Korea that my mom and I where talking and she dropped the BOMBSHELL THAT HE WAS INLOVE WITH ME (Thanks mom.) and she thought that I knew because he was being very Obvious, so obvious in fact that EVEN MY GRANDMA KNEW HE LIKED ME BUT ALSO THOUGHT I WASNT INTERESTED IN HIM??? So now I have to wait 2 years to go back to my home country and meet that boy again. WHAT DO I DO NOW?????? REDDIT HELPP ;_ ;