troubled marriage

My husband and I got married really young. After our son was born i decided that i no longer wanted to be married. I left to another city without a word to my husband. After my son turned three i located him and scheduled a meeting. I realized after being in the world that i wanted my husband back. I was to prideful to admit my mistake. So now twelve years later and we both have kids from other people i wanna work on getting my husband back but he no longer trust me. Lord help me with restoring my husband faith in me.