Dude it means your not cool!
he is being nice Well, my best friend calls me sweetheart and he is gay.
he likes her back he is all nervous about it and he is also shy!!!!!!!!!!!! GET IT!!!!!!!!!!!!!
She could either be flirting or just giving you a nickname.
"Chick" is slang for woman or girl. It doesn't "mean" anything.
Either that or he's very fond of you.
To be batty is to have "bats in the belfry" -- this means you're silly or crazy.
I'd say move on to another boy. Judging by what you provided in your Q, this boy wants to play and have his fun. Don't waste your time.
he means that he likes that girl alot
Though there is no sure way to tell, it probably does mean that. To be sure, try listening to the tone in his voice.
Yunhanam doesn't have a literal translation, but it's a term of endearment. An older girl calls a younger boy this. The best example I can give is SHINee's 'Yunhanam'. Hope this helps!
Yunhanam it's a term of endearment that an older girl calls a younger boy.