I’m scared to fart in front of my fiancé 😭

I know it sounds silly but to be honest I don’t even fart around my own mother. When I was little I accidentally farted in class and kids laughed at me so I guess I’m traumatized LOL! Anyways. I’ve been like this with everybody. How do I stop giving a damn. I mean he shits with the door wide open diarrhea and all lol.