Hello, I must say that I am married to a cancerian and I can tell you for sure they never completely close a door on any relationship. They love to dwell on past relationships and may just for the hell of it get in contact with previous lovers just to see how they are doing. If that previous lover is happy to have a non committed sexual relationship with them, what the hell they will take it. He will act as if they have never been apart and take up where it ended even if that was badly. This does not mean that nothing ever matters to them it does. They are sensitive and they love all the attention so taking up a relationship from the past as well as conducting their present relationship is acceptable to them. They dont see that it is cheating they see it as they have been there before so whats they harm, after all its not a new person. They will deny, deny and deny even if caught red handed. They are masterful and may hide behind their shell. So take good care in this relationship of yours as I think you are Interested in this man otherwise you would not sell youself so short.