I am new to this so apologies for errors. I have been with DH for 26 years, married for 20 with 2 teenage children we both adore. On the surface we appear to have a successful life, both professional people, nice house, kids doing well. Over past couple of years DH has started going out more and more with friends of his. Largely men without children. Initially he invited me along but going to clubs and gigs is not my thing so I was fine with him going without me. Increasingly he is out several times a week now. He is taking drugs more and is then useless the next day. He has signed on to dating sites and has had sex with at least 1 woman I know of. I feel his behaviour is becoming unreasonable and don't think I love him any more. He thinks I am over reacting and promises to change, but does nothing about it. Neither of us wants to hurt the kids but we are now in separate rooms and the future looks bleak. Just not sure where to go from here.