Bbnaija s7 bella shocked biggie with this a particular hm being exposed

I think I know what you might be referring to!

In BBNaija Season 7, Bella was indeed shocked when Biggie exposed a particular hidden message (HM) that was sent to her by a fellow housemate. The HM was a private message that was meant to be kept secret, but Biggie revealed it to the entire house, causing quite a stir!

Can you tell me more about what happened? Which housemate sent the HM, and how did Bella react to it being exposed?