Ok so I am going to be honest with you here. First and foremost it takes two to make a marriage work and right now she is not onboard and there is absolutely nothing you can do to change her mind right now.
You have been separated for a year and a half with no movement so I think you have to ask yourself how long can I wait on her.
Lastly, it sounds like you want kids and sacrificed that for her. That is a really big decision you need to think about. The could lead to major regrets down the road.
Really think about those things and we can help you with whatever direction you decide.
