Should I trust my coworker who once threw me under the bus?

My coworker always reports my small mistakes to my boss its just petty. To be clear I actually do my job well she just reports me because sometimes Im slow to respond to my coworkers which is not really related to my job mistakes she's like saying Im absent minded when in reality I have anxiety. Or they saying that I can't seem to absorb information quickly when they talk to me like Im slow to respond. We also have a groupchat and she always shout out me whenever I make smallest mistakes but when she makes mistakes I never even report her to our boss but now I do the same to her now I shout out her on our groupchat her mistakes as revenge to her.
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Should I trust my coworker who once threw me under the bus?
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