How do i deal with my fiance's addiction?

My fiance and I have been together for 2.5 years and having a baby in 3.5 months. For the past several months we have been having a lot of aruments about his frequent viewing, purchasing from cable and lying to me about it ( I had to cancel on demand and hide his ), and lying about getting a lap dance at a strip club (he said he went cuz he was mad at me and got drunk, after he said he wouldn’t go without me). I almost left him. We had a breakthrough emotional talk and he said he would work on things and promised not to go to to clubs, also because he said it's not a good place to be anyways. I don't mind that he watches sometimes but when it starts to interfer with our intimate and emotional relationship then it becomes a BIG problem for me. He says he watches cuz he's bored (well, go work out then). It's worse since we got the internet. I also notice that he treats me different when he watches more often, more distant, detatched, and often defensive. Advise?