He has withdrawn from sex

Hi,my boyfirend and I have been dating since Sept 2010. Up until last August, prior to our holiday everything was going fine. He started a new job a few months previously , which gave him a better income, and I noticed he was going to pubs more frequently, including straight ater work. He started to be less keen on sex and it was more of an effort, telling me it would get back to normal a few weeks after we returned from our holiday in Sept. 2012. It has not got any better, in fact, a few months ago sex stopped completely. He said to me that he was not interested, did not feel the urge. I asked him whether he was not attracted to me anymore, he said it was nothing to do with me, in fact on several occasions mentioned that he was no good in that department and that I may find someone else, I assured him I wouldn't and advised him that maybe visiting the doctor would help. He went to visit a doctor , but mainly about other issues including his occasional panic attacks, she diagnosed him with depression, gave him meds, but he has not taken because of the possible side affects. I feel it is because he still wants to drink but obviously would not be able to whilst taking anti depression medication. Last weekend I found out that he had accessed several dating sites, one of which had recent photos of him (Dec 2012), I questioned why he had been on them and was he looking for someone else. He said he wasn't , and was doing it to find out whether his disinterest in sex was something to do with me.........at that point he said I had put on a bit of weight around my tummy which had been a bit off putting to him. At this point, I said that he was shallow, and that age also can change people physically.......ie if I had a double chin would he put a bag over my head? He apologised and said he was an idiot, apoloigised and immediately cancelled his dating profiles. I am finding things difficult, what is wrong with him? He recently told me, as an experiment, he had watched a porn film , he had got arroused but not straight away, did not orgasm but found something more interesting to watch on TV. What is happening? I have tried everything to arouse him and have always been experimental in all departments of sex............Is it the problem that is causing him to drink more or the drink causing his problem? I would appreciate some help as this is slowly destroying our relationship. He says he loves me and will go to the docs to sort it, but I am losing faith as time goes on.

move on when you put in that much effort and he does some stuff like that move on he meant that comment about your weight so move on before it gets worse as a man thinks in his heart so he becomes

you know what? This is an average man's mentality and thought.He likes a women who is beautiful and has a perfect figure.I'm not saying that he is doing right but he isn't wrong either.He actually misses the old you,he wants his old slim pretty girlfriend,and after reading your problem i just understood that your Boyfriend needs a Hot,seductive girl.He loves you but at the same time he doesn't wants you to be fat,so for that i have a advice for you,Loose some weight,Wear a hot red Dress,do makeup,set up the room and give him a surprise in other words,seduce him.I think this would help.