What is the legal ruling regarding marital phrases such as "I am going to our house" or "You are difficult to deal with and live with," and are these phrases considered a divorce by intention, especially with doubt concerning the intention of both parties?

The default is the persistence of the marital bond. Thus, marriage is only dissolved by a certainty of divorce. Doubt regarding the intention of divorce when uttering an equivocal term does not effect it. Therefore, your wife remains under your marital bond, and you should disregard these [obsessive] whispers.