What Dragula says.
You weren't being yourself. I expect for you and this girl, keep it very casual, keep sexual hints on a low level, it is going to take several months at least for her interest to come back.
You can't force it now. If you keep up the sexual stuff in a mild manner she is going to keep refuting / misdirecting but it is going to turn her on in the end anyway and at a certain point, as long as you don't overdo it and keep cool, she is going to end up liking it more because she is going to get used to it and she is going to get used that that bit of sexual fun and innuendo. And since you will have no embarassment about casually keeping it up (not fearing her rejection) in the end she'll just be like, she won't notice it anymore and hence her defense against it will fade, and without her noticing it she will join you in it. That will be around the time when her interest naturally returns (say in May even, or perhaps a little sooner but I expect really not sooner than April) and you will get your 'second chance' perhaps.
Unless I don't know what happens but the main part is: stay low, keep up some sexual word play, just be natural, never rush things (normally) or force her to do things (normally) and she will drop her guard and start letting you in at a certain point.
That's my take on this story at least. She will forget you're that PUA (or whatever she thinks it is that is) and if you're daring you can defuse it by exagerrating it, but I'd be careful with that

. You'd be like "I am going to try my PUA style on you the coming two days". And then you don't say anything (over text/SPAM) and then you go "how was it?" "what?" "my pua style". Huh? Haha.
"yeah I just seduced you."
"wow amazing try it again."
"not today haha"
get comfortable around you and her.