In Hanafi Fiqh, if a husband says to his wife "I don't ever want to see your face" with the intention of divorce then one Talaaq e Bain will occur and the Nikah will break. The wife will now be in Iddat and should the couple wish to reconcile then a new Nikah will be compulsory.
However, if the couple don't do a new nikah and continue living together and a month later the husband says "talaaq, talaaq, talaaq" is this talaaq now valid?