I think TS is not formally married.
Sometimes, u may have started your relationship too young and immatured especially during university or poly, etc. Maybe, over the 7 years your love life may not be as what u expected? Maybe, love is not as strong for each other as both gets stale over time.
Best is u ask yourself what u see in FB and your fiancee. Do an independent pros/cons or SWAT analysis or something like that. Do not commit into something that will make your life miserable.......my 1 cents
