Unhappy relationship the year of our wedding

Iris

Ive been dating my fiance for 5 years. this year we plan on getting married, but im feeling extremelynunhappy with him. To the point where i dont want to be with him anymore. There are a lot of things going on with me emotionally so im all over the place. I talked to him last week about feeling unhappy. And we talked about some stuff but he doeant jnownim unhappy with him. I cant bring myself to tell him all the reasons why. I just have so many mixed emotions about the whole thing. Part of me feels like i will get over it, but this feeling keeps coming back. And i know he wont take it lightly if i tell him. I get home and im just in a bad mood with him. I just dont wanna be around him. I dont want to have sex with him. I dont know what to do