Is he saying these were sins of the mind?
Sorry, but Cain has to go. Sex is only a by-product of dishonesty in a marital relationship. In most cases, emotional infidelity has occurred for quite some time before a sexual relationship occurs. If he was supporting another woman financially and emotionally without telling his wife, then he was being very dishonest with her and should not be supported by anyone who respects the sanctity of marriage. If his intentions were entirely honourable, then it’s something he would have proudly shared with his wife. Cain may not have had sex with this woman, but she was giving him something (emotional support? praise? self-esteem) which she had no right to give and he had no right to receive. This is Cain’s “bridge too far”.