There is a difference between deliberately deciding to “live with unforgiveness” and trying to forgive, but finding it difficult. Also, there is a difference between “living with unforgiveness” for small offenses against you and deeply unjust offenses against you. If you decide to deliberately be unforgiving under your particular circumstance of abandonment, then it is my opinion that your happiness will be compromised and this could continue for the rest of your life. Under circumstances such as yours, forgiving your husband for this deep injustice could set you free to feel a happiness you might not have felt for these past three years. Decisions to forgive or not to forgive, in other words, can have a significant impact on your quality of life. Yet, you do not want to force the process of forgiveness. When you feel ready, you might consider trying to forgive.
To learn more, read a study demonstrating that Forgiveness Therapy holds promise as a post relationship, post crisis therapeutic approach for women who have experienced spousal emotional abuse.