Have you expressed any of the thoughts that you have shared in your post with him or has he with you? I've read your post several time and it seems to me you go back and forth. Hence the roller coaster ride. Is passion in reference to only sexual intercourse between the two of you? All the therapist that I've seen tell me that getting stoned causes apathy. I would like to argue with them and did until I heard it explained it to me that way. I'm in the U.S. but I assume you have the same medicine available to you as we do. I'm not suggesting you run out and get medicated and I don't know how many you have tried but it is worth researching. Where did the possibility of losing him come from? Has he told you he wants to leave? All it sounds like to me that you need to concentrate on first is developing a good line of communication. Please don't see me as the bad guy, just someone who would ask the same questions of myself. I'm a male and no expert on relationship's. I certainly hope that things work out well for you. My blessing from the states