Is it weird that she starts off a message to be as "hey babe"?

So my friend/work friend, mostly with messages she send me starts with hey babe and it weird me out because I feel you should only say that to your partner.

Now us two are strictly platonic, not even any flirting, we get along great at work and that's how I like it, not that she isn't attractive but I don't see her as more than a friend/work friend.

Now I'm sure this is just a passive of the tongue like when a girl say he's sweetie or hey hun but am I wrong in finding this "hey babe" saying weird?
Is it weird that she starts off a message to be as "hey babe"?
Post Opinion