Meh. Aaron was kicked out. He wants to pretend he left, but they got sick of him. He even thought Kayla was his soulmate not realizing she was just keeping him busy while Nick worked on April. He's one lucky SOB that April decided she wanted to be Nick's sidepiece before the search warrant. He'd still be hanging on to the "soulmate" nonsense making spaghettios while Nick balldoed his wife. I'd even bet that they decided not to waste the coke and sex on Aaron in an effort to hasten his departure. All his "I saw the light" righteousness is BS.
Not quite. The real events are somewhat worse. The first thing that happens is that one night April disappears. She drives back to Aaron's house, gets her stuff and comes back announcing that she is moving in with Nick & Kayla. Nick says "great". Kayla bitches to Aaron in private about it and how she doesn't like it but refuses to stand up to him. Aaron is confused.
Nick's plan at this point was to convince dummy Aaron to buy his second house with the equity from his existing house and at the same time put April's name on the house. Kayla's part in this nonsense was to tell Aaron how wonderful everything would be when he moved there and how Aaron & Kayla would raise all eight children together. Nick would get all the money from the house sale to replenish his cash. April would get most of the value of the house when she inevitably divorced Aaron.
April moving in with Nick (and Kayla) was a soft ultimatum that Aaron had to move to Spicer, buy Nick's house and put April's name on the house if he wanted the marriage to continue. Over several weeks, the ultimatums escalated with Kayla reduced gradually to the role of bait while April made it progressively clearer that she was with Nick.
But Aaron still wouldn't make the deal. So Nick and April created a farcical situation to generate a confrontation where they could put Aaron on the defensive and get him to agree. I suspect the confrontation was also driven by Nick's growing need for the money from that house. April or Nick first "discovered" that Aaron had left the "pawverbs" (Proverbs for dogs) book that Kayla had given him behind and had lied to Kayla about reading it. To further escalate things, Nick took Kayla's phone away from her and reads Aaron's messages to Kayla. He is fake outraged at the messages and how Aaron is treating Kayla.
So they have the final confrontation to get Aaron to move there. He has to do it to make up for all his mistreatments of poor Kayla. The three of them ultimatum Aaron and then Aaron is kicked out. That is the end of it.
Aaron was on a path to being fully cucked beyond just sexually and moving toward being a cuck financially as well. They kicked him out because he would not fully commit to the cuck role. If he had stayed longer, he would have eventually been kicked out after they had taken most or all of his money. April doesn't love Nick and Nick isn't some chad that "won" her. She is a coke whore doing what coke whores always do. Kayla's role was to be bait for Aaron.
And if Aaron didn't have gay sex with Nick during their time together, I'm sure that would have eventually been something Nick would have done if Aaron had stayed. Because given where Nick is on his coomer degeneracy spiral, going full-blown gay and trooning out seem more and more inevitable.
Most of this comes from reading between the lines from Aaron's own self-serving accounts of what happened with Nick and the others.