If your husband refuses to communicate with you, you have been honest in a not too emotional way but he is constantly defensive, refuses to admit to any feelings or discuss anything about the relationship whatsoever, and then you discover he has gone through your joint email account and deleted every single email between you (home and work) which relate to the contentious issues (money, children etc), would it be reasonable or unreasonble to suspect an affair? Would it be reasonable to ask someone to go on living with non communication from a husband indefinitely?