Quote From: poetmomTo be honest, I agree with your boyfriend. I have two ex-husbands, and I have children with both of them. I no longer have any feelings of love for either of them, but we will ALWAYS be bonded as parents, and we will ALWAYS have moments that cause us to reminisce about those children...graduations, weddings, births of grandchildren, etc. Anyone who intends to share our lives will need to understand and accept that---fortunately, my current DH, ex #1's wife, and ex #2's GF have no problems in that regard.
Your boyfriend and his ex will always have a connection. They have a child together. If you are going to spend the rest of your life with this man you will have to get used to the fact that he is on good terms with his ex. If this is not something you can live with you should probably end the relationship now.
It really doesn't sound like you have anything to worry about. (My parents were the same way and still are.)
Good luck!