Eat rocks, Sheldon.
Bert approaches Sheldon in the cafeteria to ask if hed team up on a meteorology project.
It sounds interesting but its still geology, Sheldon tells him in public.

Credit: Michael Yarish/CBS
And come to find out, Sheldon actually enjoys the collaboration.
This obviously sends him into a tailspin.
He goes to get advice from Penny, who doesnt give him advice after he calls her promiscuous.
Bert realizes Sheldon is ashamed of working on a geology project and cuts him out of it.
Wait, is Bert the Taylor Swift here??
But hes too late.
Baby, now they got bad blood.
Here-meets Bernies coworker Ruchiat a bar watching cricket.
They hit it off better this time and spend the night together.
She wants a casual relationship, and Raj is totes fine with it.
Except all of his friends know hes absolutely not.
When Raj practically verbally assaults the person selling roses in the restaurant, Ruchi asks what gives.
Raj decides it would be a waste to continue this relationship when theres no future.
The old Raj cant come to the phone right now because hes in bed.
Sorry, THAT was the last one.
Theoretical Laughter
We geologists always get a little sad with Rock-tober is over.
Bert
Im a gift horse.
Dont look me in the mouth.
Sheldon
On Bernadettes constant care during bed rest: Her transformation from my wife to my mother is complete.
I know thats what you were hoping for.