Wedding rant

A year ago today my SO popped the question we have been through so much and I love him so much but in less then 48 we will be married and o am nervous not about spending my life with him but nervous that he will get tired of me one day and want someone else he is 2 years younger then me and I am scared to death I don't want to ever get a divorce because my parents divorced when I was young and it took a big toll on my relationship with my dad because of it  am Is it normal to have cold feet I guess lol ????