What is the ruling on the following phrases that I uttered to my wife in a moment of anger, and are they considered allusions to divorce that depend on intention: "Go to your mother" or "If you want to return to your region, then return"? And what is the ruling on the intrusive thoughts that afflict me regarding uttering divorce after reading fatwas?

As long as you are doubtful about the intention of divorce in what you uttered, it is not considered a divorce because the utterance is not explicit, and a divorce by implication requires intention. Doubt does not remove the certainty of the marital bond. What you mentioned in brackets is not a divorce. You should not dwell on thoughts in this area because it is from the whisperings of Satan. The cure for this is to ignore them and seek refuge in Allah. Having presence of mind during actions and speech repels whisperings. Whoever intends divorce in their heart but does not utter it, their divorce does not occur. However, if they utter it, it occurs even if no one else hears it. What you said to your wife is not considered a divorce due to your doubt about the intention and the non-explicit nature of the utterance. What comes from the movement of your tongue is from whisperings. Therefore, hold on to your wife and turn away from the whisperings you experience.