The type of message sent should not matter at all. (I realize that's not what you're saying.)

And people have their own individual and transient needs. If a text message makes it easier to say you're sorry, then there's nothing wrong with it. Particular if that's already an accepted and normal way to communicate between the parties.

The problem wasn't that he sent it by text, the problem was that the relationship was too weak to withstand N hours of no communication. It was going to break anyway.

Haha, yeah it wasn't exactly mean to last, but this didn't help matters. Hey, you could even say iMessages helped them do the right thing. Good guy iMessages.