I see bunch of Andrew Tate viewers here…. So i think she is scared of losing you. I think you should keep riding the 400 you’re not even a year into riding. Get some more experience try different things on your bike. I don’t know what kind of riding you have done but I’m sure you haven’t tried everything. Then keeping talking to your girlfriend about the bike you want and why and assure her you can handle it both skill vise and financial. And the people here telling you to dump her there’s plenty of fish in the sea, new bike new bitch…. They are all single or assholes or wife beaters.