January will be four years that we have been together, when we first met i was bigger and we used to have sex alot, but now that ive lost 80lbs we haven't been as intimate as we used to be, when i ask her about it she says " something is wrongg with her, that is she attracted but too lazy to have sex. and that it happens in all her relationships" i don't understand!! anybody else gone thru this? December will make it a year since we have had sex