I recently made Aela the Huntress join The Blades in Skyrim the PC version, but, how do I get Aela the Huntress to re-join the "Companions" again in Skyrim???, please reply today.

I haven't done this because I [censored] hate the blades.
But I suspect that she is still a member of the companions, she just you know, hangs out with other people now.
You could reload an old save if you regret making her join them.

Maybe you could use console commands to make another copy of her.

She is still a companion with the quests and what-not. She is also a blade. She is also my Wife .

I made the Circle join the Blades before I knew what total jackasses they were going to be, Jorrvaskr is literally dead because of it.