I can actually imagine a Fraserless RayK being happy as long as he gets over his jealousy over both Stella and Fraser having other people in their lives. RayK is more attractive physically than RayV, so RayK is more likely to find a spouse than RayV. RayV is very charming and has a great personality, but I suspect that many women (or men, if you think he's bi) wouldn't look past the big nose and bald head and see RayV's attractiveness. So poor RayV would have a hard time finding someone. RayK would not. He may miss Fraser, but he would definitely find someone.