I think my teacher has a crush on me ???????

Im 13 years old and im a girl, hes 31 years old and a man (hence the 'hes') im not just saying this but anytime im walking down the corridor with my cl he doesn't look at anyone else just me, he just gives that stare where he doesn't smile at all, i really like him as well and ive had a crush on him from the first time i saw him, and sometimes when i look into his clroom hes still staring at me and he sometimes gives a small smile (btw hes a very unhappy person and he hardly ever smiles), hes always nice to me hes never shouted at me, does he have a crush on me ??