What do u guys think its going to happen?

so..there is this guy i meet exactly 6 months ago..he had a girlfriend..at first i ddnt know..after some months he told me ( he is getting married) but we still had a relationship.. the thing is he hasnt seen his girlfriend in 6 months and now he is going to see her, and im wondering what do u think he is going to feel?? do u guys think he is going to be more in love than ever..or he is going to feel the difference and maybe he is going to rethink about marrying her?? its so stupid but i appreciate if u answer..