All perfect praise be to Allaah, The Lord of the worlds. I testify that there is none worthy of worship except Allaah and that Muhammad is His slave and Messenger.
This statement is apparently a promise and a threat of divorce, but it is not a conditional divorce. So if the wife becomes angry and the husband did not put his non-explicit threat of divorce into effect, then divorce does not take place.
Allaah knows best.