I asked him at the very beginning how many kids he had. He said two, they live with their mother, he has them regularly.
Three weeks in I found out he has another one who lives with him full time. He says he didn't tell me as he didn't want me to be put off by the idea of a full time child, it was early days, he really liked me etc.
I have no problem with him looking after his own child himself, obviously. I have a massive problem with a lie this early on. Do I run now?