You want us to agree with you in regards to your feelings about the other man. You stated that your husband mistreated you so it is justifiable to commit adultery? If you are born-again christian or any denominational christian, you would not ask this type of prayer request. If you have been reading the words of God in the Bible, you would know that even your thoughts without acting on it, you have already committed adultery. Ask God, for forgiveness both for you and your husband. Speak blessings on your husband. Confess God's promises regarding marriage. Ask the Holy Spirit to give you wisdom and understanding of what you are going through. Most of all, you must feed you mind, body and soul with the words of God. Read the Bible over and over in the spirit. If you don't understand what I am saying to you, then you must be saved in the name of our Lord Jesus. The answer to your prayer request....Should I??? ...is NO in Jesus' name.