Is there any point in keeping the obedience or love stats low? Will the girls' behavior change? Will new scenes unlock?
I'd view keeping certain stats low as a challenge run that may result in seeing different dialogue or getting a sense of sequence breaking.
There might be some events that play out different if they were done in a different order. For example,I think girls will generally drag you to your room for sex friend and fuck buddy events unless you're already dating. If they're dating Zero, the scene will be an in-passing description of them groping his package or whispering
sweet nothings propositions in his ear. But generally I think scenes unlock based on reaching thresholds, not on having certain combinations of stats. Maybe some are looking at the difference between stats or checking that a stat is below some threshold, idk.
If your question should be read as "Do girls act different with when [stat] is high?" Yes.
They'll have diferent dialogues and facial expressions. Most obvious is when they're cleaning zero's cock.