Alimony is determined by your standard of living. For example, if your spouse cannot live by the standards that they became accustomed to when you were married, you will have to pay alimony in order to uphold the standard they are used to. It doesn't mean that you are at fault for the divorce, it just means that you took financial care of your soon-to-be ex while you were married. Alimony isn't a forever thing, however.
If you're in the process of going through a divorce as a parent, then one of the unfortunate circumstances you'll likely have to face is that of determining who will pay child support and how much needs to be paid. This can be a very complicated aspect of any divorce, but it's important for both divorcing parents to understand the facts behind some of the most common child support myths out there.