If you made it het it sounds exactly like what you’d find a pre-1990s romcom movie plot. Pretty Woman, Earth Girls are Easy, that movie where a guy falls in love with a mannequin…

No, I don’t think it’s gross. I think it’s absolutely normal.

All the characters are adults. There’s a 10 year age gap. So what?

It sounds romantic to me, anon. You should publish/share it.

Edit for clarity: I’m not suggesting you should make it het, I’m pointing out that it’s a common dynamic in het romance and there’s nothing wrong with it.