have i messed up?

Problem solved

Please let me know what you think because i feel like i should text her tonight and try and organize some sort of sit down too adress my stupidity?

You texted her that you didn't have a hangover and that last night was good. What's stupid about that?

Perhaps she had her beer goggles on and regretted getting together with you. Perhaps she only ever intended for it to be a one night drunken snog. It's entirely possible that you've done nothing wrong other than pick the wrong girl.

You've got nothing to lose by asking her out, but don't expect anything.

Oh and don't apologise for anything. You've done nothing wrong and it will just make you look lame. Girls like confidence!!

Go on the attack. Text her and say "Hey, after our last escapades are you game to get amongst it?" or some such. Own that experience in such a power and yet light hearted way that her very core will be thrilled, THRILLED I say, and she will sit in superglue for minutes reading the text over and over, picturing in her mind's eye the two of you in increasingly more bizzare configurations, some involving the dwarf from Game of Thrones.

As above, LIKE A BOSS!

Thank you. going on the attack worked , much appreciated xxx