Dreams involving conversations with an unfamiliar man, especially with flirty and sexual undertones, can reflect various aspects of your emotional state and relationships. In your case, it appears that these dreams are serving as a manifestation of your feelings regarding your husband's infidelity and your own feelings of frustration and betrayal.
The presence of the unknown man could symbolize a desire for emotional or physical connection that you may feel is lacking in your current relationship. His flirtatious nature might represent your longing for intimacy or validation that you feel has been compromised due to your husband's actions.
Your husband's anger in the dream may be an expression of your own internal conflict. It suggests that you are grappling with feelings of guilt or shame about seeking out emotional fulfillment outside of your marriage, even if only in a dream state. The fact that he catches you before anything physical happens indicates a struggle between your desire for freedom or exploration and the reality of your current situation.
The frustration you feel when caught could signify a desire to express your own needs and feelings that you feel are being suppressed. This may be an invitation for you to explore your emotions further and consider what you truly want in your relationship.
It could be beneficial to reflect on these dreams and your feelings in waking life. Consider addressing the underlying issues in your relationship, whether through open communication with your husband or seeking support from a therapist. Understanding and processing these emotions might lead you to a clearer path forward, whether that involves healing your current relationship or making necessary changes.