How should I go about addressing the issue of honesty in a message to this person?

we had been friends for a while , but haven't talked for a bit. one of the big issues between us seemed to be a lack of honestly on her part. and i'm not entirely sure why she was like that with me and not other people.

anyways trying to write them a message and trying to figure out the best way to address the issue

should i just state it directly that they weren't honest with me about things or how should i go about this?

How should I go about addressing the issue of honesty in a message to this person?
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