I’m sorry for that day and for your discomfort. I’m not sure if my message will reach you at the right stage of your life, but I’m truly sorry for that day.
I came today just to meet you — even moved my group project meeting today so I could be here. I’m not sure if we’ll get another chance to meet again; we’re in different departments and might not cross paths anymore.
There’s something I’ve wanted to say for a long time, but I don't know how to say, I never learned it, i wish somehow one day you know it.
That’s all. I just wanted to say sorry — and leave this note here once.
I’m still thankful that we were friends. I hope we could be again. I never wanted to lose a connection with you.
And… happy belated birthday. I know my message probably got missed, but I still wanted to say it.
This felt like the simplest way for me to leave this message. I’m sorry.