How to crack an introverted girl?

There is an introverted girl I like from work and I believe she is crazy about me but cannot express her feeling because she is v. closed off. I’ve no problem with that, she’s supposedly been hurt in the past so I understand.
Now to the complicated part, we’ve been meeting up on nights out and kissing on/off for two months but I’m still unsure where I stand. I obviously mean quite a lot to her but she only really opens up to me when she’s drunk. We can all talk crap when we’re drunk, so what’s true and what’s not? Is she being genuine or am I being used? I should point out she is a regular user of tinder/hinge, yet when I’m with her I feel like she wants me more than anything but is afraid to admit it and somewhat plays what we have down.

How to crack an introverted girl?
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