I DONT KNOW WHAT TO DO

uh so 2 years ago i was in 7th grade and this one guy whos older then me he was in 8th that time..i liked him but i never got the courage to tell him how i felt- we met again this year on discord and theres this gc that he has me on and with his friends but erm hes talking to one of the girls on the gc and that girl was my best friend in 7th grade we just started talking again ( the girl that the guy i like is talking too ) he told me hes not technically in a relationship with her but he said if he were to go in person to the school they were going have made it official and i feel so bad for liking him i dont know what to do - i want to tell him so bad but then again i feel like id fuck up our friendship...