I'm a terrible lier, so I hate even trying it. Usually I don't need to, as I am actually quite busy, but I had been on a business trip this week, and hadn't made a plan for Friday night yet, so she caught me in a weak situation. I do have guitar lessons earlier on Friday evenings, but I had nothing scheduled afterwards. After she asked me and I didn't reply, I felt a little bad, because I had said no to several of her invitations over the last few weeks, due to my having other plans, so I thought since I DIDN'T have anything going later Friday night, why not say yes? I think she'd been a little put off by my turning down her other invitations, so she probably just wanted a yes answer to turn the tables on me a bit, and she did. I'm happy with myself that I'm not hurt or bothered by this too much. It's just a game.
I have made another plan for tonight, so I won't be sitting home!