Romance Miranda while being impartial with Jack/Miranda

Hi guys,
first of all, I am very sorry to create a new topic about a romance with Miranda. I have read a lot of topics about that and the answers were not consistent.

If you agree, I would like to present my playthrough and my questions :

I don't play Parangon or Renegade, I play both depending on the situation... Right now I have like 60% Parangon, 40% Renegade.

I did the Jack's mission and now she's loyal.
Yesterday I did the Miranda's one and just after finishing the mission, I am teleported in the Normandy and Joker said that the girls have a fight.

So : I have all the choices during their fight, the blue choice, the red one, Jack side and Miranda side.

What I want : keep everyone loyal AND romance Miranda.
Can you help me ? Which choice should I play ?

I tried the renegade options, it's like an impartial choice and both stay loyal. Just after that, when I talk with Miranda she thanks me for my help. At the end of the conversation, she says something like "Hum it's better to not have feeling, priority to the mission" and let me like a s***.

Thank you for your attention ! =)

I would try to either pick the Paragon option to resolve the fight, or take Miranda's side and attempt to regain Jack's loyalty in a later conversation (I am not sure what the requirements are to do this, only that it is technically possible).

It is not the easier course to side with Miranda. If you did her quest first, you get to start the romance conversations which already lean her to your side. Otherwise, Miranda can be reasoned with. Jack cannot and is very hard to turn unless you're romancing her via Paragon options.

Take Jack's side and then pick Miranda's conversation option that you had to side with Jack for the mission because Jack is crazy and can't hold it together. If you resolved Miranda's mission with her sister, a few planet landings later she will return to Loyalty.

This is even easier if Miranda's quest is the second one you did, because you can wait on the conversation which starts the romance until she returns to Loyalty. You may need to raise your points in Paragon, if you have anything left in the game or redo your class build for the morality bonus. If all else fails, buy the Death Mask on Tuchanka and repeat Miranda's quest. The 10% bonus from the helmet still applies to your build on the fight scene.