Is this breaking Girl Code?

This girl I've been best friends with for almost seven years is now dating a guy I have had a thing for for a few months and have been talking to for a while. The only reason I found out was because I walked in on them cuddling and when she saw me she pulled away from him and tried to act like nothing was happening. When I asked my other friends if they were dating they said yeah they had been for a couple weeks and that she had asked them not to tell me. Is that considered breaking girls code? Feel free to elaborate in the comments.
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Just a clarification, me and the guy were talking talking, not just like friends. And she knew that we were talking. I feel as though both of them are in the wrong. Her for keeping it a secret and not telling me and him for being a deceitful jackass.
Is this breaking Girl Code?
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