Hair on body

So my ex boyfriend and I are trying to fix our problems and hopefully get back together soon . So lately he's been calling me "hairy arms" because I mean I do have hair on my arms but they aren't too bad , like all girls have hair ! It's fucking normal !!!! So he was basically like "you do know razors exist ". "I shave my arms and it doesn't take very long why don't you" mind you he didn't mention any of this to me when we first started dating ! And all of a sudden it's a problem to him ? And when I asked him why is it such an issue that I have hair on my arms and his response was "it's not feminine for a girl to have hair , and also it's a preference " like why is it NOW such a big deal? Am I over reacting ?