This sounds so familiar to me. Read this link or another if you will. You may be thinking people are so critical of him because they don't see the good side of him like you do. I've been that way exactly. I tried to help my partner change. I made him a photo book to motivate him to change back to being the good partner and father he once was. I bought him an Eagles' CD with the song "Love Will Keep Us Alive". I thought I could help him if I just loved him enough. It doesn't work that way though. He chooses his behaviors.