Does she belong to the streets?! She wants to invite her ex-fiancé to her wedding and her NOW fiancé is not cool with it!

Ahoy BAJ I am fearful that my fiancé belongs to the streets and is still in love with her ex. As we are planning our wedding she demanded that we invite her ex fiancé. I keep telling her I’m uncomfortable with him being there but she is adamant that we invite him. This makes me uneasy because she talks about him all the time and we’ve had fights about it in the past. My biggest fear is that when the Pastor asks “does anyone oppose?” that he will stand up and say something. My insecurities also are convincing me that my fiancé wants him to be there so he can stop it. I’m sure I’m just in my head but I need to know from the pro’s, does my fiancé belong to the streets?