My parents got divorced when I was 7. I barely understood but they handled it really well…I can’t remember a single thing they said now, but one morning they told me and both my older brothers to come into their bedroom and they explained the situation. Again, I don’t remember what they said, but I remember sitting there for a while. And somehow I understood and was really sad for a few days. Just try your best to explain it…I really don’t know what else to say, I know this isn’t much help but it’s my 2 cents on the subject from the other side of the fence. I’m sorry you’re in this situation, but good luck