Is there a reason you have to stay home all day with her? At 17 she can be home alone or entertain herself can't she? I'd come up a hobby or place to go, even if it was only the library! Ours has internet and everything.

Maybe things will be a bit better when she gets going to school (you said she went to sign up yesterday)?

You aren't allowed to say "no" to taking her out to dinner when she's out with plans and you have different ones? How did she know you were going to the city? She's old enough to be handed $5 and/or have have a frozen pizza she can make if she wants to be home and told to get her own dinner; she doesn't need a babysitter!