My husband’s fathered another child with his ex wife, my marriage is ruined.

My husband's father is wealthy. He bought his son (my husband) his dream car as a birthday gift. My husband wanted to use the money to pay for his school tuition. He refused to accept the car from his father and he decided to stop school for the time being to work and save up money for tuition. His father then cut off supply and fundings to him. His relationship with his father has been strained ever since. <br>My husband has no other means of income, he works as an intern at a company. He doesn't receive pay. <br>His father is married to another woman now. We visited him for his birthday and he seemed so happy with his new wife. They seemed to be getting along well. <br>Yesterday, we visited his family and his brother told me that his father's wife is actually the second wife and his first wife is still his legal wife. His father and his first wife have been having sex and their daughter was even conceived from this sex. His first wife gave birth a few months ago. <br>I'm heartbroken. I can't even believe that he would do this. I feel like his type of people are the kind who like to have affairs but I never expected him to actually marry someone. This is humiliating and I'm so angry that I'm leaving.