It is also mentioned in end run that Jason could have married Svetlana, if she wanted to, and a captain can marry two people, even in reality. Now I don't know if they were able to do so because they were in two seperate branches. Also a high up military personel, can't think of name or rank on this one, also sent Svetlana to Jason's room in which it is implied (at least to me) that they did have sex. Once again you have to take into consideration that they are in two different branches of the military.