Don't think of it as having "lost the battle". No you haven't lost anything, not even your libido, I believe. Its just that when you lack "practise", you don't think about it too much so you think its gone. I am sure that your libido is as normal as ever as mine is. It is funny how deprivation translates into erotic dreams doesn't it? Even our subconscious minds tells us something is missing. I wrote to my H that I had been having some sexy dreams about him and wanted to share it with him someday but as usual he just pretended like he never saw my mail. Ok maybe he didn't really ignore it, he never said anything as usual but he was extra loving and tried to do nice things for me ie acts of service is his love language. Happiness is what we make of it, if we choose to be happy we are. So instead of fretting about it, I was happy to listen to his love language and felt loved. Although I would have preferred if it came along with declarations of love and passionate kisses. Like if he had said something like "Oh you missed me this much, do you, come here you...."
MSM, I hope you can chose to be happy regardless of the SSM in your marriage as I have. I see many positives in my M and in my H and I still have not given up hope. My H recently gave up smoking and I never pressured or nagged him about it. I simply believe in him and give him support whenever he needed it, like a massage every other day to get over the urge to smoke. Similarly, I will not pressure him about the lack of intimacy, though of course I intend to remind him every now and then in a very nice way that it is something I hope for and I believe he will do something about it for us. To truly not pressure a person, you have to truly be comfortable and happy about the sitch yourself otherwise your resentment will show through in some way. So I have chosen the path of happiness. I choose to look for the positives in our M and there are plenty of it. Why, just read at some of the postings in the separated, infedility or other forums and you will realise how good your M is in comparison.
Don't fret, sweat it out or feel unhappy MSM, especially if divorce is not for you and you intend to stay in this M but don't give up and continue to give your H gentle reminders and hopefully you will have the intimacy back in your M one day. At least for me, my H has become very affectionate again and its easier and easier for him to be affectionate and loving towards me when he does not feel the constant pressure for more. And affection for me fills up my love tank 80-90% so I'm not complaining. :grin Good luck to you too.
Good luck to you too.