<p>Arthur and Sadie would have been nice. I really liked how they're both really bad but good at their core. Both people who lost it all yet still have some decency left in them. If Arthur didin't get T.B. I'm 100% they would have ended up togheder, after they mannaged to get past their suffering, probably around the epilogue.</p><p>And in regards Mary, she's too pure for Arthur(Mary-Beth I mean), and the other Mary is more hazardous rather than caring, not to say that she's a bad person but Arthur and Mary Linton are simply not compatible. Both Arthur and Sadie would have been outcasts and fall into a pit of darkness and only they could have understood eatchother witch would have made that relationship pretty interesting.</p>