My wife doesn't want intimacy anymore?

[David]

My wife and I have been married for 11 years now. The first couple of years we were trying to have kids, she got pregnant, and we have two boys now; 6 and 8 years old. After the second child was born she began to loose interest in intimacy, sex and sometimes kissing. There were several times I would try to kiss her and I was pushed away. Tried to get intimate and given excuses: I'm tired, the kids are next door, I can't just turn off, it's too early. Give her some intimacy and she would climax and roll over with no reciprocation. So it's been almost 6 years now of No sex, none, ziltch nada. We went to EAP therapy last year (Rashid, nice guy) to try and resolve the sex intimacy dilemma. We did the homework assigned (what do you like about your spouse....). It's been over a year since the therapy and no change. For New Years Eve, I was going to go to a party with my two sons because she wanted to stay home - she finally came but begrudgingly. She has Fridays off from work and I want to meet for lunch, she would rather make cookies for the kids or do PTA volunteering. I'm tired of this nonsense and have been sleeping on the sofa downstairs instead of the bedroom (at least I can watch TV for excitement). Any suggestions? I'm beginning to think it's over........