law and order svu - torn between two lovers

Olivi and Elliot had a one night thing it just happened , Olivia end's up pregnent, she is happy and can't wait to tell Elliot,she believed it was more then just one night she thought that they were more then just partners now but when she tells him about the baby he gets mad ...telling her that no one can find out and he doesn't want anything to do with the baby because he loves his wife and that night meant nothing to him ................