I bet my wife can relate. I wonder sometimes when my children came along, she reverted back to when she was raising her siblings, that she was back in a familiar role that she seems to like, and that is raising children. I felt as if I almost disappeared from her life as soon as the children came. My function in the house was to help her raise the children. She completely changed as a person when the first child was born. She was HD up till then. She had a child, she was more stressed, she gained weight and can not lose it, she got a hypoactive thyroid (which definitely does not help). All about the same time. That was 17 years ago, and my marriage has never been much good since then. It was like she was in her comfort zone, being MOM.