First I want to say this situation is very much my fault. Not solely my fault of course, but still something I had a heavy hand in. Right now I am in a relationship that has been successful through hardship. However in the past few months I made the mistake of letting my insecurities push my partner away. I suggested a separation which she resisted completely. A few days later we had a party and decided to explore new horizons with other people. Myself with a friend we hardly new, Her with a friend we have known for years and both care deeply about. I had a pointless night and she found an emotional connection. I then made the mistake of trying to step in and say it had to stop later in the evening because I was afraid. We have been together five years, living together two years and married almost a year. We have a young son whom we both love implicitly. Now I made the agreement that she can explore her feelings with the third party, because she took my prior advice and believes a separation is something she needs. I am doing all I can to be supportive in a situation where, for all intents and purposes, we are both single and I am competing with another man for her affections. If I fight her I will lose, if I don't win her affections fairly, I lose everything, and no matter how much I am acceptable with the situation, any time spent between them makes it difficult for me not to be physically sick. I am a very emotional and loving person, and I made the grave mistake of looking for validation where I needed none, and now I am paying the price. The advice I seek is what I can do to relax myself, stop stressing and do what I do best, Love my wife, try to assure her happiness, and fight for her with all I have, just as she deserves. Any advisement would be appreciated, but please know I have carefully weighed all of my options and will not regard anything along the lines of "She is a *insert insult here* move on and stop trying.* As advisement. She is younger than myself by two years and much earlier in our relationship she fell for someone else and I gave up. I only had my chance to make up for it because he did not show interest. I refuse to make the same mistake again because I know she is worth the fight, and worth the roiling ocean of emotions cascading within my heart.