Dear [name]，
I hope this letter finds you well. There’s something I’ve been wanting to tell you for a while， and I just couldn’t keep it to myself any longer. The truth is， I have feelings for you – strong feelings that I just can’t shake off.
I know we’ve been friends for a while now， and I don’t want to risk losing that， but I also can’t help how I feel. Every time I’m around you， my heart races and my mind goes blank. I find myself daydreaming about us， and I can’t help but imagine what it would be like to be more than just friends.
I know this might be unexpected， and maybe even a little uncomfortable， but I just had to tell you. I don’t want to keep hiding my feelings or pretending like everything is okay when it’s not. I truly believe that we could have something special if you feel the same way.
I understand if you don’t feel the same， and I promise that I won’t make things awkward between us. Our friendship means everything to me， and I would never want to lose that.
So， I’ll leave it up to you to decide what happens next. I just wanted you to know how I feel， and I hope that maybe， just maybe， we can explore these feelings together.
Yours sincerely，
[Your name]
