Your question sounds very similar to this one, maybe these answers will help:

http://www.experienceproject.com/question-answer.php?q=1491

As of right now, he has lost interest in you. Count your blessing that you are NOT married to him or pg from him. It's time to cut your loses and find yourself another guy.

Usually when a guy loses interest in a girl, he does NOT get it back, especially a guy that young...Prepare yourself to say goodbye to him.

When I was engaged to my now-husband, he stopped having **x with me entirely. He said he was depressed. I figured once we got married he would change. Boy was I wrong! We had **x maybe twice a year - I forced the issue so that I could get pregnant. This lasted for SEVEN YEARS! I lost all self-esteem, was absolutely beside myself with misery - I only got joy from my wonderful children and the friends I was making thru them. After the seven year mark, I said enough of this! and really started to work on myself. I felt divorce was not an option, so I worked out, made more friends, got involved in a tennis league, volunteered for everything under the sun, basically made a new life for myself. Well, guess who got re-interested? And at that point, I had no time for him. We did start to have much more frequent **x, but for me the emotional connection was GONE. Flash forward to today, and I am desparately trying to get out of this marriage - after 20 years! RUN! As fast as you can AWAY from this man. He will RUIN your life.