The untouched subject is why Gracefeel is barefoot.
Also, the dialogue in the second season feels more like a theater play. The original novel is probably like that. William already has fame and fortune. The suggestion of love life is telling people he is not neglecting this aspect.
When William realized Gracefeel was the Reincarnation Goddess who gave him a second life, he declared to be her beacon(apostle) in isekai. Unlike other gods, Gracefeel has difficulty to manifest herself physically in human world. She is still one of the most active in human affairs.
Stagnate abandoned her post and became Undead Goddess. Her physical manifestation in human world is a muscle man. He was giving William a bad day. If she sends him for mating, it will traumatize William. Besides making Gracefeel upset, William is not interested in Stanate. She loves heroes, and mourns for their death due to old age. She thinks making them immortal is a good thing, but she ends up making them undead, which is bad for them. William's victory over Stagnate(muslce man) makes Stangate feeling ecstasy, because she identifies William as a hero, not a random villain. She is not happy about William's short life, so she wants William to have descendants. So, she can play with them. If William cannot find a mate, Stangate will help him out. She uses Goddess RheaSilvia as an example. Staying with her is not good for William's health. By anime standard, William would classify her as yandere.