Your sweetie asks you to get him/her a soda… with ice…
You say, “Sorry, Babe, I can’t do that. I love you to the moon and back, and here’s the deal: I just sat down. I’ve had a full day, I’m really tired, need a break and I’ve got to rest. So, if you want that drink, you’ll have to get it yourself. And if I’m totally honest, I’d love it if you brought me one too.”
There’s absolutely nothing wrong with saying ‘NO’ to someone you love.