The right one

As of recently I have begun to feel like I am not the right person for my husband. We were married young (20) and have been married for six years and together for 13 years. I love him dearly however our interest do not coincide. He has started drinking a lot and tells me it is the only way he feels he can relax and have fun. I've let it slide but feel it shouldn't be the only way he should be able to enjoy time with friends and family. The amount he drinks varies but it is consistent. 
I also know that when he drinks he does not tend to make responsible choices usually driving when he probably shouldn't or having someone else drive him that is also not sober. The last time he went out he ended up getting two lap dances and touching the strippers. Now every time he goes out I'm anxious about the trouble he will get into. 
I want to be a fun and loving wife and not mother him but he places me in a position where I come off as a complete ass. Does anyone have any suggestions? Thanks!