what to do

i really like this guy, i’ve never liked anyone this much before. he is my brother’s friend and he probably doesn’t feel the same way about me but i still want him to know that i like him just to know if there’s any chance he likes me too. so me and my brother are reallly close🤞🏻 and i kinda want to tell him that i like his friend because i know he will ask me if he should tell him. but i have no idea how he’ll react because they are 4 years older than me😣 but this guy is the most handsome and polite and just the best person i have met. he’s the only one of my brother’s friends that actually talks to me like he cares about what’s going on in my life and how things are going. so, should i tell him?😑😑😑