As I see it, you broke your relationship covenant if you promised to see her exclusively. Doesn't matter if it was with a man or a woman...it was a breach of faith.

She is within her rights to exclude you from her life from this point forward. You'll have to work to earn her trust back, assuming she is willing to let you try.

I think right now the only thing you can do is be patient with her and let her know that (1) you messed up, and (2) you're willing to work to earn back her trust.

Best of luck!

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Life is too short not to love and be loved....preferably multiple times in one night.

I think men talk to women so they can sleep with them and women sleep with men so they can talk to them. ~ Jay McInerney