I've had a similar problem and came to the realisation that it wasn't the piano that I'd "fallen out" with, it was the culture that comes with classical training which I won't get into here as I don't want to derail your thread!
I'm a bit curious, why are you starting piano lessons if you feel you have lost your love for piano?Or is it that your fundamental love remains, you are just not very keen on practising right now?If so, I think you can allow yourself to not practise if you don't feel like it. At one point, I got burnt out on playing, took a five week total break, and then started feeling drawn to playing again, and practising naturally resumed at its own pace.A new teacher, if they're good and a good fit for you, can also help inject new inspiration and passion by showing you new avenues to explore.