Burning with Jealousy

On the way home with my husband, we ran into the man from next door in the elevator. After exchanging a few polite words, we parted ways, but my husband’s reaction was oddly suspicious. He pressed me with persistent questions and soon began showing a possessiveness over me. Embarrassed by his unusually rough and teasing manner, I nevertheless felt as though I were with someone entirely different, and strangely, I didn’t dislike it. But still… what should I do about this mark?