Life and relationships of any kind will always have their ups and downs. Parenting probably moreso than others. I loved reading how you handled your sons behaviour and how it turned out. It shows the power of healthy boundaries. Your son respects you for calling him on his sht. Well done.
I always knew you would thrive, but it's great to hear (read) you say it. Now that that weight has been lifted from you, you are shining. Your new man sees that.It is likely that exH will see that sooner or later, if he doesn't already. Whether he does or not it doesn't matter, he lost something special when he left you.
This process could have broken you too. Not many would have managed to stand like you did. Instead you have come out the other side and not only living a good life but thriving. I couldn't wish anything more for you. You deserve it.
Best wishes
R 25 years M 14 years S11 & S13 Working on it alone since Oct 2014 M in trouble a lot earlier (~2 years) Feb 2016. 1st R chat in a yr. Next R chat Aug'17 Still together
