Can totally understand the whole not wanting to shag ur missus after being with her for 10 years. my buddies and I talk about our rooting habbits with our wives and it makes me realise that im one lucky bugga!! After 9 years together my wife still fucks like a pornstar, just not as often.
I probably wouldnt have minded more sex even after 10 years if she hadnt been a complete bitch

Your lady is a keeper!!!