What do you think of me telling my friend that I'm free to hang much later than I'm actually free to hang?
Why would you do that to your friend?
I want to watch television in the evening. My friend has plans I don't like.
It's cool if you want to have some time for yourself in the evening. It's ok you told him that you're busy now.
He has to wait. I'm not going to hang anytime soon.
It's time to put some time away for yourself. Your friend would understand if you didn't want to spend all of your time with them.