Is this right or was he too harsh?

my boyfriend almost broke up with me after he found out I had not deleted chats from exes. I never delete chats but I do delete saved photos on my phone from exes. I never open the chats or text them , just I have some there bc I forgot about it and others I have there bc I have my photos there that I can't delete. he took it as disrespect and a lost of trust so he almost broke up with me. was he too harsh or is this the right response? (this is my first relationship by the way)
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first serious relationship **
Is this right or was he too harsh?
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