i want to say ren does remember? like maybe they take up a room at a motel close to the town, but not quite inside it, and ren thinks that's enough for him not to be affected by the dark shit going on inside? EXCEPT, obviously, it is enough, and ren ends up exhibiting strange behaviour that ends penultimately in him returning to town and taking his husband with him. oof......
i'm leaning more towards the figuring things out/trying to piece things together route for ren's behaviour, though he'd also probably be a bit more aggressive. i'd say personality-wise he's one of those "in control of all the important things in life, so he's good at going with the flow" types-- probably leans more towards logic and reason than emotion, but he's not totally emotionally constipated or something. but he'll come back from a long walk and it's like everything about your guy is turning him on, and is he???? in rut??????? (spoiler alert: the hell town's demonic energy is definitely getting him in rut)
i wouldn't say he's especially career-oriented, but he loves his job! and probably he's never been against kids, but if you're gonna play someone in the 50-80 range then it could be that the age of his omega partner has made it so that... like, they don't have to take the risk. and potentially ren's seeded him often enough it hasn't taken so they figure it's safe or something, i dunno!