Last Thursday night's episode showed a teaser for this week, where Brooke sits Nick down to tell him something.
"It is something big and it's something you should know," she says to him.
"I did not see this coming," Nick responded.
Obviously, we're all on edge to know the secret... especially since Nick thinks Brooke could be 'wife' material.
It is possible that Brooke's big 'secret' is that she is bisexual, which to say the least wouldn't be that much of a bombshell at all.
In an interview with NW magazine, Brooke revealed her sexuality.
Although this isn't something that needs to be 'dropped' as a 'bombshell' in 2018, we do hope Nick takes it well if it is.