Reddit Stories | OP and her brother are very close, particularly after their dad left them and their mom because he was a cheater. So OP’s brother took on that role for her and now she has learned that her brother is also a cheater. What’s worse for OP is that she is being used by her brother as an alibi to carry out the cheating. OP had enough and confronted her brother, he came up with a lame excuse and OP isn’t having any of it.