Does the husband's saying, "You know how," after he swore he would annoy his wife, count as a jocular divorce, knowing that he was joking?

The husband's statement: "I divorced my wife" or "I divorced you" does not affect the marital bond if it is a report and not an act of creating divorce. Divorce does not occur through reporting unless it is intended as an act of creation. Your husband's statement: "once or twice" is a report and is a metaphorical expression (kinayah) by which divorce does not occur except with intention. Similarly, his statement: "By Allah, I will trouble you" does not cause divorce to occur because it does not carry the meaning of divorce, and because it is in the future tense and not an immediate pronouncement. Therefore, the marital relationship has not been affected by these words, and the wife is advised to repel and treat obsessive whispers.