Tuesday night thought.. should it not bother me?

I'm not sure if everyone has one or two people that they've only been around once or twice in their life? People who you met by pure chance, far away from home, and mean a great deal to ya. And it'd really hurt to even lose them as an acquaintance, let alone when you both consider each other close friend. I think I might have lost or be losing one of those few people, and it does bother me. Funny, said person msgs me as I'm typing this. About something being off between us. Who knew I was someone who picked up on things so well?