Outfit for date night

So we are going to a baseball game and then going for a dinner date in the city which I assume will be a bit fancier.

I’m not sure what I should wear. The weather is gonna be warm&sjnmy (but I’m the chillier side of warm)

I feel like a dress would be too much for the game. Maybe a simple romper? Or jeans and a nicer top? Idk