Yes Hosea, you can forgive those that have hurt you only through the same grace that God forgave you. He will give you that grace as you act upon the forgiveness toward others. Just remember some will not want your forgiveness, if they don't want it then it's their problem with God if they refuse it. So don't carry that on your shoulders as long as you know God knows your heart. You will be the better person for doing what is right in God's eyes.
Heavenly Father teach Hosea to be forgiving toward those that have hurt him. Give him the wisdom he needs on how to approach them and the strength to do what is your will. Bring his wife back to him to be one as you have joined them. Bind them with your unconditional love, forgiveness, understanding, kindness, trust, fidelity, respect, and put joy back into their marriage and life. I pray and thank you in advance in Jesus Christ Precious Name, always giving you all the Honor and the Glory to whom all power belongs, Amen!