Depends on what you mean by decent guy.
He aided and abetted his kids' drug use, knocked his son's 2 front teeth out, and was in an altercation with his son a couple of years ago where a shot was fired and he is highly suspected as having shot at his son.
Also, he was recently picked up for drug use himself.
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Nobody's perfect. :)
If he is caring for her at this time in her life, good for him.