What to do if your housemate gossip about you?

I have two housemates named Mhil and Red.

I confronted one of my confidential secret about a coworker of mine who treats me somehow rude. I told her that she has attitude problems and insecure.

I never told it to Red because I know they are friends with my coworker. Then suddenly I was shock that Red knows about it, so probably Mhil share about it. And now Red reported it to his Friend (coworker)

My co worker is mad at me thaf I talk behind her back telling she has attitude problem. What to do?

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And now Red reported it to his friend (my co worker)
What to do if your housemate gossip about you?
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