Does divorce occur if a man tells his wife, "Stay here," with the intention of divorce in this part of the sentence, even though the entire sentence does not imply divorce?

Divorce does not occur with this phrase. You must completely disregard these whispers (waswas) and be convinced by what the Mufti has advised you, and not inquire about this matter again. Indeed, succumbing to waswas leads to great evil, and turning away from them is the best remedy.