I found out today that my partner of 5 years has a child that I knew nothing about. The child was born when we had been together for around 5 months. He was separated from his wife when we met but he said he had no kids of his own, just a step child from that relationship. Obviously his ex must have been pregnant at the time.
I'm in shock. I didn't think he was that sort of person. Not only to keep something like this from me but to not have contact with his child. To make matters worse we have just had a baby. He was great during the pregnancy, was there for the birth and is great with her which makes this even harder to understand. He doesn't know that I know. How should I even bring this up?
I'm trying to rationalise this by thinking that maybe he only found out recently and didn't know how to tell me what with the pregnancy etc? I know that's probably just self delusion. What should I do?!