Tuff night Tuff day

Hi All, Feeling a little down today, Yesterday was my youngest daughters 21st birthday. She has been my reason for all that I am and have done and put up with. Makes me sad, but very glad she has grownup to be the person she is. Me and the wife took her out for B-day supper and all and a waive of, well of emotion has overcome me. Since I have started the attitude of “not trying to be anything more than friends” the wife is all” life is grand”. She is off with her girlfriend, working-out, going to the movie, eating out, studying. All this is good, and I am happy that she is happy, but I feel used. I don’t feel any companionship in our relationship anymore, and very lonely. I cant “fake-it” and try to pretend that everything is ok to me. Just feeling old today. Just a rant I guess.