The thing is when you first met roushk you had 2 options, I am not sure what were they but there were 2 options, you can get one by selecting one option and the other scene if you select the other option. If you didn't save during the 2 scenes then I am afraid you cannot do anything to get the second cg scene. Or if you are planning to start a new game, you can then select the second option. You can refer to the guide provides for futher details