I read your discussion and have to agree with you and you might need to revisit the reasons why you got together with the young man. From my experience I made the same mistake over 30 years ago. I was the younger man and she was the older woman. It lasted about 4 years. We parted on good terms as what we wanted and where we were at in our lives was just not compatible no matter how much we told ourselves we were. Luckily for me there were no children involved but if you have children then maybe that might give him a little more maturity to realise that he has to have more consideration for you and the child instead of just himself. I wish you the best and hope it works out but if not then it's best to end on good terms.