Dear ATRLer, I think you're really cool and I'd like to talk to you more, but I never really know how I should approach you. Hopefully we'll get to know each other in the future.
Dear ATRLer, you've been a great friend to me in the short time I've known you and I'm glad we met.
Dear ATRLer, I'm sorry we don't talk as much as we used to.
I don't really have free time like I did back then, but I still think about you a lot and I miss our conversations.