So, maybe there is no area where you are causing harm by being absent or not fulfilling a commitment, hurting no one. We're totally free to choose but some choices are obviously worse than others. This seems a little odd since it is such a strong and prevalent human event. Does masturbation fall under the category of purity? Certainly, actual fornication would be a sin, and masturbation would be preferable in this instance. The thing is what they're saying is a sin isn't the act of feeling around your unmentionables till you feel oh, so good.
You aren't missing your child's school play or doing it instead of putting the laundry in the dryer that you promised you would have done sidebar:
Is Masturbation a Sin in Christianity?
Alright, time to get down. But on the other hand, she is not available. Let's say that a wife is incapacitated by an accident and is in the hospital for an extended period of time. That masturbation is a band aid on the bleeding wound of resentment and unspoken anger. Sometimes you are missing the target by acting out symptoms and actions, not being mindful of where they come from and what they are. Maybe you aren't healing your relationships and taking accountability.