Is the husband's saying to his wife in a moment of anger, "Get out of the room, let me change my clothes," and his insistence on it until she left, considered among the allusions to divorce, despite the ambiguity of his intention?

As long as you did not firmly intend to divorce your wife, and you did not utter the explicit words of divorce, then your divorce has not occurred. This is because the certainty of marriage is not removed by the doubt of divorce. It is advisable to disregard whisperings (waswas) and not pay attention to them.