Recurring dreams often signify unresolved emotions or conflicts in your waking life. In your case, the dream seems to highlight feelings of frustration and resentment related to your husband's past infidelity. The presence of a different man in these dreams may represent your desire for emotional connection or excitement that you feel is lacking in your current relationship.
The flirtatious and sexual nature of your conversations with this unfamiliar man could symbolize your yearning for intimacy and validation that you might not be receiving from your husband. The fact that your husband catches you each time and reacts with anger could reflect your internalized guilt and fear of betrayal, even if you're not physically acting on these desires.
This dream might be urging you to confront your feelings about your husband’s infidelity and to assess your own emotional needs. It could be helpful to communicate openly with your husband about your feelings, or to seek counseling if you're struggling to navigate these issues alone. Ultimately, this dream is a call to address the underlying frustrations in your relationship and to seek fulfillment in healthier ways.