My Boyfriend is always asking for pics?

My boyfriend is always planning things with me and then cancelling last minute. Whenever we are supposed to hang out he always texts me an hour before that he's going with his friends instead. He's always making excuses too but then he goes ahead and is always asking me for pics and to do stuff. I don't know what to do.

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UPDATE: Turns out he was two timing me with one of my friends and we both found out and we're so pissed. She broke up with him and I took pictures of all our conversations on my iPad and am acting nice to him bc he thinks I would actually still date him. He said it's not his fualt since his parents are always yelling at him and now he's lost. Like bro wtf ☠️. My friend said I should get back at him but I don't know how. Pls give advice.
My Boyfriend is always asking for pics?
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