But if I take this post seriously, I'd say this: stop pretending to be alpha, that's not a thing. Try to worry less about your inexperience. She's going to tell her friends regardless because it's a hilarious story. But that's ok, sex can be very funny.

I would think everything would be all good except her saying that she was tired afterwards. That's likely a lack of interest.

All you can do is have a good sense of humor about it. Make some jokes. Either she's interested in you or not and what you say probably isn't going to change that much. But either way, some good jokes will make you look good.