Let's see if I can recite that last Anakin/Padme/Obi-wan interaction word by word, I haven't seen it in a few months, but here goes. I'll just start off with the earliest dialogue I can clearly remember. I'm probably gonna screw up the order of a few lines tbh xD
Anakin and Padme talk, but Obi-wan happens
"I can't believe what I'm hearing.. Obi-wan was right. You've changed..."
"..I don't wanna hear anymore about Obi-wan. The Jedi have have turned against me, don't you turn against me."
Padme tears up here and the somber music swells up dramatically
"I don't know you anymore. Ani, you're breaking my heart. You're going down a path I can't follow.."
"..Because of Obi-wan?"
"Because of what you've done! What you plan to do.. Stop! Stop now, come back, I love you!"
Obi-wan appears at the ship's entrance here, and Anakin sees him standing there
"You liar!"
She turns around sees he snuck onboard, which honestly she didn't want him knowing about this so oops
"No!"
"You're with him! You brought him here to kill me!"
Anakin proceeds to force-choke her, as you would with a pregnant woman, but he's out of his mind by now so he doesn't know better.. I guess
"Let her go, Anakin!"
keeps choking her
"Let. Her. Go."
lets go, and the music's choir pick up here bc she passed out
"You turned her against me!" Hard to tell if this was a question tbh
"You have done that yourself!"
"You will not take her from me!!"
"Your anger and your lust for power have already done that.. You have allowed this dark lord to take over your mind until now.. you have become the very thing you swore to destroy."
they take off the Jedi robes here, I think? I don't remember them wearing it in the fight after
"Don't lecture me, Obi-wan. I see through the lies of the Jedi. I do not fear the Dark Side as you do.."
Obi-wan checks Padme's pulse to see if she's resting in peace
"I have brought peace! Freedom! Justice! And security to my new empire!"
"Your new empire?!"
"Don't make me kill you.." ow the edge
"Anakin, my allegiance is to the republic, to democracy!"
"..If you're not with me, then you are my enemy!"
"Only a sith deals in absolutes.. I will do what I must."
"You will try..."
And then the fight begins. Only reason I remember it so much is because as a kid, I'd watch the scene and be super amazed by it, and once the fight was over and Anakin's missing a few limbs, I'd skip all the way back to beginning of it and rewatch the build up to the fight. I still think the scene's great these days
EDIT: Just rewatched the scene, got a few details off from the scene about the music, but the lines were near perfect!
EDIT 2: Hid myself quoting the movie word by word bc it clogs up the thread more than it needs to xD Also, here's a link to the scene if you wanna see how close I got -> Padme's plea