Your wife might be feeling sad for several reasons:
Reminders of past pain: Your infidelity might have brought back painful memories of the time when she cheated on you five years ago. Even though she came clean about her mistake and has been trying to rebuild trust, your actions might have triggered old wounds.
Betrayal and hurt: While she forgave you for your infidelity, it doesn't mean that the pain of your betrayal has disappeared entirely. It takes time to heal from such experiences, and she might still be processing the emotions associated with your actions.
Doubt and insecurity: Your infidelity could lead her to question the stability and future of the relationship. She might be feeling uncertain about whether the relationship can truly recover from both of your cheating incidents.
Fear of recurrence: Your actions might have reignited her fears of potential future infidelity, even though she has been committed to rebuilding trust and moving forward.
Emotional toll: Dealing with infidelity, whether her own in the past or yours, can take a significant emotional toll. She may be struggling to cope with these emotions and trying to come to terms with the impact on the relationship.
Guilt and self-blame: Your wife might be blaming herself for the infidelity or wondering if she could have done something differently to prevent it. She may also feel guilty for her past actions and how they may have contributed to the current situation.
It's important to remember that forgiveness does not erase the consequences of infidelity or the emotions associated with it. Healing from such wounds takes time, patience, and effort from both partners. Open and honest communication is crucial during this process. If the relationship is to move forward in a healthy way, both of you should be committed to rebuilding trust, addressing any underlying issues, and seeking support, such as couples counseling, if needed.
Ultimately, it's essential to be understanding, empathetic, and patient with each other as you work through these challenges together. It won't be easy, but with genuine effort and commitment, it is possible to rebuild a stronger and more resilient relationship.