So happy to see normal relationship in Isekai manga, not where everyone is crazy in love with the MC. Like if they end up together I will still be perfectly fine with it because it's so slow and build properly and normal just like in real life.
I mean real life can vary. Some people have "love at first sight", while most develop it more over time.
That's the nice thing about stories like this. Is that there is a variety of ways for authors to tell stories. Some can mirror reality more, some can mirror fantasys more, and some can go off the deep end in either direction.
What's nice about this story is that it has some good worldbuilding, good varied characters, and some thought behind it. Not just horny energy+isekai reincarnation world= waifu/s.
(it can be noted that fame/power is a real thing with relationships, groupies and other sorts of instant relationships absolutely exist in real life also).
I am the same as you though, I like how things are here, and am perfectly happy whether it develops or not.