I can understand what you mean by complications happening.. Jess was fucking her cousins husband, secretly of course, but they were in danger of being discovered when he began to get very possessive. Instead of being happy that he was able to fuck a married woman several times a week without complication, he wanted her all to himself. He was prepared to leave his wife for Jess but Jess was having none of it, so, when he started pestering her she had to dump him. Even then it took quite a while before he accepted it, for a while I thought I was going to have to warn him off myself which I didn't want to do because then he would have known that I knew of their affair.