Just tossing this out, but it sounds like your friend is trying. I can see how someone would write if in that sentence and not mean anything other than she's genuinely sorry. Perhaps it is time to take her at her word that she is sorry. She did a crappy thing and all you can do is forgive her or stop being friends with her. I think she just seems confused and maybe isn't the world's greatest with words.

The question really is whether or not you feel she is truly remorseful. If not, you still have a problem. If so, you're good.