Cancer and Cancer will feel like they're on a treadmill before long. These two simply understand each other too well which makes it easy for one to hurt the other and vice versa. When these two overemotional people get together, they're far too demanding of each other, requiring lots of encouragement and support. Eventually, they will come to resent each other for not giving enough emotional support. Though it may not be enough, their imaginations in the bedroom are definitely on the same track.