After my crash back in 012 I fell several times and therapy did help with that. But like the saying goes and is true, you can lead a horse to water but you can't make it drink. You've done all you can so the rest is up to her, for better or worse. Just knowing you've done all you can do might not help you very much but others know you have so try to live knowing you tried hard. It really is all you can do.