Does it ever get better?

I litteraly felt my heart breaking apart while I replied to my wifes email. I just wanted to cry and give up all hope. It seems that all hope is lost. I would gladly give my life up for her to be happy for just one day. I dont know what to do anymore, I dont know how to be. I am so lost! My candle seems to be dimming every moment I think of my wife not loving me anymore. I dont even know what ive done.