opening up

so me and my fiancé have been together for 3 years and i have never opened up to him about my feelings toward him to his face. i just get so much anxiety when i’m with him and literally go speechless. and it has caused so many problems and i need it fixed soon before i lose him. ): i’ve always been super shy growing up and have never done this before. i have cried in front of him the past week cause i want to say how i feel so bad but nothing will come out )):!!