I love my girlfriend to death, how can I make her more comfortable with our relationship?

Wrestlr00
So, my girlfriend seems to be convinced that I'm playing her. That I talk to a bunch of girls, and she's just one of many, which is not the case by any means. We've been through quite a few arguments, always about her paranoia that there are other girls in my life. I know she loves me, because she tells me that. But she has a hard time trusting me... I've tried so many things! Getting rid of all social media, letting her see all contacts in my phone, I don't know what else I can do... Please. Someone who can give me some REAL advice instead of the obvious... Thanks y'all
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+1 y
So, I sent her a pic last night. A pic I only took for her. All it was was a shirtless pic. I sent it to her at about 1 am... She likes that kind of thing, because she knows I'm thinking about her. Anyways. While I was sleeping, at 5:49 am my phone decided to send her the same pic all over again. She took that as me trying to send it to another girl, but I sent it to her by mistake. She gets extremely upset and tells me to lose her number, and talk to whoever the pic was supposed to go to.
I love my girlfriend to death, how can I make her more comfortable with our relationship?
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