SO2 - pretty normal. I don't think detaching means you just stop having feelings, it's really sort of like staying off alcohol/drugs. I don't mean to diminish the hold that drugs and alcohol can have on a person at all, but this is a situation where we perform unhealthy activities on an obsessive level.
SO2 - start with an hour, or even a half hour a day. Find something to do that will keep your mind occupied. Move up to an hour after a week. It's impossible to just say, "I'm going to stop thinking about some I love."