I didn't have exactly this experience, but when I suddenly one day didn't feel anything for my SP any more and couldn't even make myself feel anything for him any more, after years of being in love with him but not hearing from him, the following month he contacted me by letter and was very keen to talk to me and wanted my phone number. It was a long distance relationship. We did, we started to get close, I started feeling love for him again, he seemed keen on me and excited to talk to me and confided things to me that he said he didn't tell people, but then things went wrong, we had a falling out, and I haven't heard from him again for over a year.