SS is on his dad's insurance. I married his mom and now we have a son. Wife wanted me to put new son on my insurance but was too costly to add him and cheaper to add him to hers. She added both of us to her insurance and required i pay the difference. I found out she added SS and did not tell me. Huge fight occureed because i asked that she or his dad contribute. She says that just because she added SS to the insurance that it doesnt cost anything extra and that I am mistreating SS because it doesnt cost extra UGH. We are now going to separate because i feel like this is taking advantage.