im so lost

sooo i like a boy. hes my first love too like😭😭 nvm i started liking him 2 months ago and added him on snap. we started snapping and after two weeks i confessed my feelings for him and he told me he that he has a gf. so i stopped talking to him but i miss him so much😭 i love him and it hurts knowing someone else is having the time of her life with him. i dont want to ruin their relationship so im not doing anything stupid. im just waiting. idk what im waitinf but im just waiting. i want to forget him but i cant. he doesnt get out of my head. in my head i want them to break up but then i feel bad for feeling this way bcs i have no right to wish sth bad like that. but idk what to do. can yall help me out pls😭😭