Hello,
I'm sorry that I can't give you any personal experiance being able to "live without a satisfying sex life?". I don't think you would be a terrible person to feigne enjoyment for 10 years, but I certainly think it would cause problems if you did, honesty is the best option for issues this big.

I suggest that you try and find new/different ways to make sex exciting and satisfying. Firstly with a pencil it won't do what others have been able to so you have to discover other things that can equal what you now don't have; that is a whole different thread, needless to say there are many other things you can expand having 'sex' with so that size isn't such an issue.
But hoensty, openness, trial + error and lots of arkward moments - depending on your personalities - are needed. You might find that having to be so open and exposed to each other brings you together in a way normal physical relationships don't.

I have had a sex life that started off incredably akward and thus boring which would have been something I did "not enjoy or look forward to". But by talking my partner and being honest about the situtation, in as sensortive and open way, we got over this and got to know each other much closer than we would have otherwise.

If you both are serious and wanting to make your relationship work I am sure together you can find a way to make it more satisfying for you. I find a physical relationship very important over the long-term, and I hope that you manage to find a way through this.
I hope this helps and I haven't been too off the question...