I would like to tell you one story.

I had perfect friends- a guy with his wife. They seem to me to be a perfect couple. Though they had a lot of problems, their relationships were very warm and tender. Looking at them I always gained confidence in the future. I was sure that if you love, you can cope with everything.
They are not ideal people. They quarreled sometimes and argued, just like any couple, but they always tried to keep together.
All the more I was shocked learning of their divorce. I truly feel sorry for them and hope they nevertheless will be together.

It is obvious that I wondered the reason of such awful decision. Both of them answered that they had problems, but didn't solve them. "We could not get on together!" said they and of course I didn't believe them! They were 6 years together and only now they suddenly "could not get on".
They also said they realized their mistakes and would try to correct them next time as they already know what is waiting for