Maybe it's just me, but I take things like this to heart. If we're family, good friends- like family, then you should be man enough to tell me something important either face to face, or at least call. Besides, if you were text something like that to me, and I didn't respond right away, then you might assume that the situations isn't going well, and that could bother you.
I ended a friendship with a best friend because he ignored my phone calls for a week only because he was afraid to tell me that he was going to live with his sister the following semester. We were always close, and talked about everything- and he just couldn't do it. But he could tell me through a facebook private message. Fuck. That. If you're not man enough to talk to me, then you're obviously not man enough to be my friend. I only deal with pussies during sex, ya know what I mean?