It did work though, it gave our marriage a boost. She continued to see more and more of Alex, and I had my own thing as well. It was good, no doubt about it!
The difference between my thing and hers, was that mine was just sexual. What she had with Alex may have been born out of lust, but it soon became apparent to me that she loved him, and he loved her, and she admitted as much to me when she was ready to make their relationship more serious. This made me jealous at first, but she had a way of drawing me closer to her, and making me feel more secure in her own love for me, while at the same time giving as much time to her relationship with Alex as they needed. She was very good at it. She also made it a huge turn-on for us both!
Alex and I were eventually introduced to each other, and hit it off straight away. We became, and still are good friends. He started to spend more and more time at ours, and her at his, until it became a hassle for him to go back to his place at night, or for her to come home. So we agreed it would be better for us to find a place that was more suitable for the three of us. It was not long before we were all under one roof.
All of us were very happy with this, it really did work very well. She would spend one night with me, and the next with Alex. We would often all be in the same bed together. She was never happier.