It was a rollercoaster.

Don’t – ever – go – back – Don’t – ever – go – back – Don’t – ever – go – back !

This will be how you two work together, always. A rollercoaster is not a good relationship (even if it is quite common). A relationship must be based on stability, trust and mutual care.

You can love him, like him, respect him, wishing him happiness, etc. pp. AND never ever reboot that relationship!

Thank him for the lessons learned and move on.