Why do I have a problem calling my fiance...

my fiance? I find the word really obnoxious and I hate saying it. Why does it matter whether you have a boyfriend or a fiance? Do people view you differently if you have a bf vs fiance? I continue to introduce or refer to my fiance as my bf. It just makes me more comfortable and yet, I am secretly pleased when my fiance refers to me as his fiance. Does that make any sense?