I was once married to a much older man than I. I was 17 and he was 34 at the time. I already had a daughter. we stayed together for 10 yrs and at first had a wonderful relationship. now I am 55 and he is 72! not together now of course but yes eventually the age will start to show. it will make a difference and hon you can't change a person. if he is not into the same things you are it just won't work out. no matter the age.