I feel kind of the same way. Not in a "women are only good for sex" kind of way but I genuinely just get mentally drained by interaction with *most* people. You know the whole introvert vs extrovert where they get energy from etc. If its not coming to either sexy time or a clear emotional/mental connection it really does feel like wasted time. The same with with dudes though. Unless they really have some common interests and a non-confrontational/not-annoying personality its just draining. That's why the interweb is so awesome as you can just turn the conversations off when they become tiresome (IE Mort, no offense)