Theory: Macaque is partly the reason Wukong sucks at communicating with MK
Don't get me wrong, the Monkey King just straight up sucks at talking things out, but I don't think Macaque helped.
We don't know how long they knew each other before the Brotherhood but we can assume it was long before that point. He almost seems to be a relationship that mimics not just friendship but an informal mentee-mentor one as well.
Wukong is a natural leader, loud and charismatic where Macaque clearly is confident but prefers to be his 'shadow'.
He's more like a right hand monkey to Wukong, but their relationship isn't necessarily defined in that way, or at all. The two have no trouble speaking their minds or messing around so there is definitely a mutual respect. Wukong doesn't necessarily listen to Macaque, though this doesn't seem to really upset him, nor does it seem to bother him that Wukong treats him as something like a younger brother (or whatever) where he expects him to just always be there and to go along with his wild plan of the day.
If you look at it as a Mentor/Mentee situation, their fight might look a little different relating to modern day.
Macaque finally breaks and now that Wukong HAS to listen, he tells him exactly how he screwed up, not with the Jade Emp fight but with him, specifically. Wukong is angry too, but once Macaque leaves, his anger doesn't seem to linger.
I think he listened, and we can tell in modern day. And not necessarily in a good way. Wukong withholds a lot from MK. He doesn't treat MK as an equal until the end of S4. He holds him at bay, and focuses on their mentor/mentee and friendship relationship. Macaque had made him realize that he'd ignored his best friend's 'military' guidance because he'd taken his friendship for granted rather than seeing him as his right hand man. Wukong doesn't want to hear that from MK, wants him to remain MKs hero rather than equal that he would have to listen to, because he failed so badly with Macaque and can't really open himself up to that kind of potential to fail so badly again. He was afraid MK might turn on him or fail him like Macaque did, and he might get MK hurt by not letting him help.
However - when MK and Macaque retrieve Wukong from the scroll, the two have their little non-verbal exchange and after that point Wukong changes his angle on teamwork. His guilty conscious probably got a kick start from the Samadhi fire thing and failed LBD fight, and after spending so much time in the scroll alone reliving his mistakes and subsequently getting Macaques forgiveness or approval or whatever that was, he was finally ready to swallow that fear of screwing up his relationship with MK and to work with everyone else.