Don't know if this will help in your situation. The first couple I know who got divorced and back together: He had an affair and they divorced. She dated and he was still with OW. I was a kid so I really don't remember how long they were apart but they remarried, had a child and that was at least 34 years ago.
The 2nd couple have not remarried but are living together. I believe he had an affair, he wasn't very good about paying bills but good about racking them up. She was hurt and angry. They were divorced about a year when her grandmother died. He was there for her and it brought them back together. She said they needed the time apart to grow and let go of the anger and disaapointment that they had. They are now trying to have a baby.
Hope this helps you.
kat
Me-53(and learning!) S24, S21, D18, D17 Just keep swimming, Just keep swimming. Dory