With the blatant actions of Nihil, it is easy for Luis to see through the old man's intention. It is quite a surprise for Luis though. Since he never experienced having a parent introduce their child to him with the intention of dating or even marriage.
Luis must admit that he is not viable to be considered as a marriage candidate to anyone back then.
This is actually a good thing since it saved him all the trouble of admitting to anyone coming to him that he is gay and it's not like there is a crazy parent who would push their son to him.
However, it seems like his life as the Moon Elf Lord and a bearer let him gain the attention that he was deprived of before.
Maybe if it was a few days after his rebirth, he would gladly bounce to anyone thrown at him but now…
Luis is afraid that he doesn't have any appetite for other men since Xagrien is doing a great job of keeping him full.
Hihihi.