Woah.. it's been a month! Sorry for neglecting rs. Anyways, I think they're besties (i think of this with all dreamy pairings except for dongren tbh) especially since jeno was renjun's 1st dreamy roommate. I also thought they had this older-younger brother dynamic to them, which I think is kinda applicable for most dreamies with jeno, purely because he tends to be really adorable with the way he expresses himself. You're probably asking because jeno said that they're like an older married couple, or something on that line. I think this refer the earlier fact I mentioned abt them being roommates. I think during that time, they bonded by talking with each other a lot. Jeno seemed reserved, but I think he's the sort to open up to others over time, & I think they matched well due to that as well as the fact that they lived with each other for a long time. I also think their oldest vs leader role as they promote as 5dream contributed a lot to their dynamics.