Should I have been the hard-***?

[Ref_ Fred]

Maybe there isn't enough quality refs to completely cover middle school age girls ball in the summer, given that there is plenty of competition for your services.

spring and summer basketball competes with many sports. Soccer, Baseball, and most of the time the same official that does basketball also does the other sports.

As for the comment that the other offical made,

The ref who was already there was standing by the table, when he sees the other ref show up he says "I'd rather ref this game by myself then work with this clown."

There is an official code of ethics. if he said that loud enough for you to hear, he isn't foolwing the code. If he had any comment about his partner he should have kep it to himself.