

Sorry for the long post, i like giving details, especially when i am not sure about things.
TL;DR
I have 3 male diamond doves, one is getting bullied by one of the others, and is not thriving. Will this bullying stop if i just get another dove for the lonely one to pair with, like planned? Or Will i need to separate them completely?
Details:
I'm kind of New to diamond doves, we got 2 males for our aviary about a year ago, which went smoothly. They Are lovely little birds.
However last winter was surprisingly cold, and despite having an indoor area with heating, some of the birds ended up getting sick and sadly didn't recover. Including one of the little doves, so we only had 1 Left.
So last weekend we got 2 New male doves. Yes 2. We were planing to get one, however the place selling them only had 2 Left. We didn't want to leave one behind to either get sold alone, or just sit lonely in a cage for Who knows how long. So we decided the aviary could have room for 4 doves, got 2, and was gonna get one more on a later date. So we have 3 male doves.
Carl. The old dove.
Peter. One of the New doves.
Ben. The other New dove.
Sadly Carl does not get along with Peter and bullies him a lot. Which has me quite worried, since Peter got here, he always stays as far away from the others as he Can, often in the same corner above the Door of the outside aviary. Almost All day, looking stressed and generally unhappy. His Feathers Are fluffed up and his eyes squint.
Carl and Ben Are getting along great, sitting by eachother side, and just being plain adorable. Ben does not participate in the bullying.
It has been Hard to get a video of the bullying itself, so i Will attempt to described it.
Generally Carl will chase Peter on the ground, pecking at the his head and neck if he gets close enough, and even hitting him with his wings it seems. If Peter flys away Carl follows, until Peter either hides under some of the decor, or fly's into a different area of the aviary, like Going outside if he was inside before. None of this has resulted in physical wounds, i check him almost every day Because i am worried it could evolve into that.
I am looking to get another dove for Peter to pair with, like i said before, however i don't know if the bullying Will stop just by getting another dove, or if i should split them up completely.
I have for a while been wanting to move the doves into the house, however i am a little tight on space. I can make space if i pack down some things, So i am willing and able to get a properly sized cage, but would rather keep both pairs in the aviary for now if possible.
The photos Are of Carl and Ben sitting inside. And one of Peter sitting in his usual spot, stressed.