Hululu's Things

Ahh so i have this idk wierd maybe kind of crush on a guy(ps: he is on my mind 24/7). he is 3 years older than me and he is very attractive he has got those greek god looks, venom voice, mythical body and he is good at sports and studying. He has lots of girls fawning over him every now and then and i met him through an online platform we both added each other on insta and snap and we did videocall also [ THE FIRST GIRL WITH WHOM HE HAS EVER DONE A VIDEOCALL]. But the problem is that he thinks of me as his little sister; he is protective of me if anyone flirts wih me he gets annoyed but he only looks at me like his little sister and I LOVE HIM. What do I do?? T-T （/TДT)/ （/TДT)/ （/TДT)/