Fetch Monster

I've decided that Tilda needs to learn she has to be quieter and can't always have her way. She has become a little bit to big of a fetch monster. :) Now don't think I don't want her to play fetch. She also doesn't have a barking problem. That's not the case. I think she has got into a habit that after we go for a walk we might play fetch. So, she paces around inside and will whine wanting to go outside and play fetch. It can get a little annoying. She doesn't  have to have her way. If I don't want to take her outside and play fetch, she will be fine. It's not like she didn't have any exercise. The other thing is in winter we can't take her out every time she wants to go out. I feel like if I take her outside to play fetch when she is whining that is like rewarding her.