There's a few references in the Bible where it says that God hates divorce, he calls it an abomination.  When we say our vows in the name of God, we say in sickness and in health.  To me, addiction is a disease that an alcoholic for example struggles with.  But when there is children involved, isn't it the best thing to separate and pull the kids out of the hostile environment?  And don't kids resent their parents for staying with an abuser?

If there is physical abuse, then the responsible parent needs to inform the police and have them take care of it.  Or they could simply take the children and go stay with a friend or relative.  Being with an abusive spouse is going to affect everyone involved, but especially the children.  When you have children, they should be your number one priority.  There are many cases where the abuser is mentally and emotionally abusive.  I'm sure they weren't like that during the dating and engagement, they may have gotten bitter over time.  The wedding vows say in sickness and in health.  To mentally abuse someone, a person has to be sick.  It's not right and they've obviously hurting inside also.  Maybe stage a family meeting with people who care and can give that person helpful advice on how they treat their family and how it's affecting them, and most importantly that it needs to stop.

I completely understand why God is so against divorce. Once you get married your a family and just like a person wouldn't ever leave their mothers and never talk to them again or disown their children for any reason a husband and a wife is the same thing. We dont feel like it is because with our parents and kids we didn't really have a choice we just got what God gave us but with our spouses we had the ability to choose them, marry them, and spend the rest of lives with them. We may say we made the wrong choice because of so many problems but that person is your family now and we should stick with them through everything.

I'm not a person who is completely against divorce, I believe that if affairs or physical abuse is involved then that is the best decision. My parents got divorced and I wouldn't have had it any other way.

  There are many different routes in lieu of divorce.  A separation may be helpful, counseling, prayer, but it has to take the commitment of each partner to create a successful marriage.  Nowadays it seems like divorce is the first choice of how to resolve problems.  I personally wouldn't be comfortable with ending my marriage unless we tried and tried everything imaginable and it just didn't work. 

What about when feelings for the other just fade away. I know of a person who was in this situation. They just completely stopped loving each other. They were more of friends and they didn't even care whether the other came home or not. They divorced and they're still on good terms.