I dont know what to do?

So my girlfriend who I’ve been with for a few months now I would ask her for pictures of her nothing explicit just her face but she would always say that I needed a reason (though I have seen her face before it was just by accident and she doesn't even know she showed me her face) but I found out that she sent picture of herself like face picks a pic of her thighs to her guy friend who she hasn’t even known for a whole month and I don’t know what to do

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I confronted her about it and she said Every time I go to send a photo of myself my mind and body won't let me, I've tried so many times to send a photo but my body just stops and won't move, I don't know if it's my anxiety or ADHD, but I can't, my body won't physically let me. And when Ray asked I thought that, you know, it'll probably be the same, but before I could even look I already sent it, I have tried so many times but I can't, I physically can't. I'm sorry.
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Found out she has been lying about a lot of important stuff and now I feel like I can’t trust a single word she says worst part is I didn’t find out from her but her mother so I don’t know what I’m going to do from here but ending things just seems like the best option
I dont know what to do?
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