anonymiss: Oh sorry I thought I answered. Texting is insincere because it is to detached from reality and it makes it seem like it is not important enough for you to actually waste time and talk to her about it personally.
And if she is just hurt then she will most probably get over it especially since you seem to have done it nicely and because it is the truth. She may be upset at you for a bit but I think she would actually rather know the truth and be upset for a bit then have you dodge it.