Slut Phase

Okay so a few years ago I went through a few months of basically just chasing sex. It was a shit time at home or whatever and I was younger and didn't care. I'm well and truly settled now with someone I love who I've been with for over a year now.
He knows about my life before him including those few months. From day one that he's found out he's never let it go. I'm totally over it especially starting this new year living together, graduated, new job ect I've left my past self and mistakes far behind me and I'm looking forward to the future. His constant hounding about 'what I used to be' and 'what I've said' is so exhausting and I just don't know how else to tell him I'm over it and to shut up other then to say fuck off. Can someone please help because I'm literally about to peg something across the room at him it's like I'm so happy and feeling motivated and positive then he opens his mouth 🙃🙃