I agree with this, on the whole. I do kind of think that it would be strange for Rodney not to start behaving differently towards Keller once he started crushing on her, not necessarily because he felt he had to change but just because when we start crushing on someone, we very often do start behaving differently towards them. But yes, I think Keller likes Rodney for Rodney and that that's made apparent in Trio, and that she probably didn't notice his odd behavior because his "odd" behavior was pretty in keeping with how a lot of people act when they're crushing hard on someone.