L'amour dure trois ans

Never been married. But have shacked up with women before. In fact was once formally engaged but never consummated the deal. Each meaningful relationship over the past 50 years -- and I've had a few -- lasted exactly three years. Some lasted weeks or months but they weren't meaningful. This flick's in French and I've never seen it. But would like to. Maybe it has subtitles. Or one day perhaps some tired hollywood type will try an easy score with an English version. Just drawn to the title, which has been my experience as well.