If Reese has a strong dislike for the NM, what if the Mc doesn’t want their kids visiting Reese? They’re okay with Elis, but not Reese—mainly because mc is overly protective and is worried that they stilled dislike them and is worried the beef will affect the kids .Even though Reese likely wouldn’t act out due to Gab and the child being part of him , what if the discomfort is still there. (Based on irl events)
It probably wouldn't be a thing in the books other than maybe some boundary conversations. But that's a little too niche to code into a novel. I would question why the MC is more concerned about Reese disliking them than Elias's everything, though. As far as we know, Reese as not had people stand as statues around.
Also, while Reese has reservations and some dislike for the MC, he has never been outwardly hostile to my knowledge. So, I think that's why it wouldn't be a thing in this book. Because it's more little comments here and there. MC can choose to tell him to knock it off, or ignore it. But, that's just a part of being around people sometimes.
Side note: Reese, if he found out minimart was in Elias's care alone would not be okay. He would then have a huge problem with MC for doing that and raise hell there. Elias is his soulmate but damn would he not trust that situation.