Why is he sending me messages between him and his ex?

To preface a little, this guy and I are good friends, but want to date each other, but in reality neither of us are ready. He send me screenshots of his ex texting him (she's blocked but somehow the messages came through), why would he send me the screenshots of what she sent him? He responded back but pretty much ignoring everything she said and saying she must've mean to message someone else. Why send me this at all? I don't get it. I need guy behavior explained on this one because I don't understand. Please don't call me stupid.
Why is he sending me messages between him and his ex?
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