Excellent Gabe. You are getting more like me every day. You can only gain from these interactions. Actually everyone can gain even if you don't reconcile...you are your XW can have a more relaxed relationship and your son will benefit from two parents getting along. See already how much more at ease she is. She's calling you. I mean you, not for something to do with your son. She could have waited til she saw you and dropped a quick..."thanks for the shoes. They are nice" and drove away. But she made a point of calling you.
Kudos. You know I never discourage an act of pursuing. Because you have absolutely nothing to lose. Just be true to yourself though without trying to hard to manipulate her feelings.
Me
In the end, it's not the years in your life that count. It's the life in your years. Abraham Lincoln
It is hard to fail, but it is worse never to have tried to succeed. Theodore Roosevelt
You can only gain from these interactions. Actually everyone can gain even if you don't reconcile...you are your XW can have a more relaxed relationship and your son will benefit from two parents getting along. See already how much more at ease she is. She's calling you. I mean you, not for something to do with your son. She could have waited til she saw you and dropped a quick..."thanks for the shoes. They are nice" and drove away. But she made a point of calling you. 
