sexless marriage wth adhd partner

I am trying to cope with very little sex with my wife...I'm doing everything in the house and am frustrated with not having sex. She was diagnosed year ago and the physical relationship has diminished drastically. I am contemplating going outside my marriage for sex but I don't want that.....I am supportive and am at my wits end. Managing finances, renovations, car maintenance and work and being father to our 3 yr old and a recovering alcoholic is taking its toll. This is myfirst blog about this and I can't take it anymore.I'm 43 yrs old and my sex drive is thru the roof. I'm tired of waiting and initiating sex....weve been marrried 8 yrs...she is seeing counselor but I don't know what to do anymore. please give me some advice!