Hey there, cheers for playing and reporting this, let me break those down point by point:
1] this only happens if you used cheats in your previous save or in the current playthrough, cheats add coins or progress to all characters, so if you want to avoid this behavior avoid using global cheats.
2] this is a bug, no idea how could I have missed this, guess there is already too many variation to try out, thank you for reporting this, it will get fixed in the next release. (the dialogue reactions are switched up by mistake for some girls)
3] Typos are a never ending battle for me, I will make a new thorough check with AI tool to try to squish as many as possible.
4] Not sure I understand this one correctly, Power Girl gets "cured" from the genetic incompatibility once you reach high enough unlock level and trigger pregnancy interaction, then she has a "normal" fertility cycle, that is done by design and should work like this.
5] This is a normal function right now, but tethering the name to a girl is a good idea, I will see how difficult it would be to implement, so far no one pointed this out.
Very useful feedback, thank you Xo Mo!
Mr. Palm