One more thing
I've seen it from different angles now, not once but a few times and my conclusion is this - it boils down to these 3 key elements:
First is forgiveness. You must learn to forgive your partner from what he/she has done or left undone. You must accept that you were hurt by his/her actions or words and that you are willing to bury the hatchet. Forgive your partner and yourself for all the hurtful things and words you gave and received.
Secondly is amnesia. You must be able to completely erase this painful episode from your memory. Nothing less than a complete surrender of one's being to amnesia is effective to make this relationship work.
And lastly be able to communicate. This unfortunate incident has opened my eyes that you were not communicating with each. You must find a way to be open about your thoughts and feelings to each other without fear of rejection or ridicule. Honest and open should be the line of communication for a relationship to thrive and prosper.
That's all I have to say. And yes, this is my unsolicited advise. I'm done now!