My marriage

My husband of 18 years walked out on me April 1 2011 with no explanation as to why, other than, "I'm not in love with you & haven't been for some time. I was only playing along for the sake of the kids & that isn't working anymore" I found out a week later that he & my best friend have been texting each other for about a month. When I asked her what their conversations were about she said about the school board he was running for & a game they were playing on their phones. I find that hard to believe considering the amount of text messages were about 50-80 a day. She said nothing physical happened between them & that she was unaware of his feeling for her until he told her in a text message. I found out in my daughters counseling session last week that a week before he left he went to her work & told her, "I'm leaving your mom I can't do it anymore" We have had problems with his lack of sexual desire for some time. During a routine physical in January our doctor was going on some complaints & symptom check list & sexual desire was listed so she ordered a blood test & found that he has a very low testosterone (normal functional low is about 266 he was 76) So he was prescribed testosterone shots bi weekly everything was going fine or so I thought! Then about mid March his dose was doubled & a week later he walked out. Our children are 18, 16, 13 & 7. Our oldest son joined the Air Force & left in December they are all having a hard time adjusting. At this point he isn't talking to me & is very infrequently seeing the kids. They are now very angry with him because his lack of interest in them & that he hasn't given me any money in over a month. We are behind in everything! I know God will provide. Please pray for our family, my husband & myself. I have been taking it day by day & I can't stand myself on the days when I do nothing but cry! I love my husband & desperately want him to at least consider counseling.