I do that too. I just moved out from the man I've been living with for two years and I don't feel anything about it. (That's why I moved out.) He's a great guy and we have a lot of fun, but there was a situation with his ex that he didn't handle well so I just sort of "shut off" as you put it. The situation was minor, but that was eight months ago and I still can't seem to get my heart into the relationship. I've hurt his feelings and I'm not even sure if I can trust him anymore because of things that have happened since I pushed him away. If you find out how to turn it all back on I'd love to know. (It is nice to know some one else feels that way too. I some times wonder though, if he just isn't the right one?)