WHAT DOES 😌 MEAN AND WHAT DOES 😊 MEAN?

Basically I’m really good friends with this guy and I really like him. We talk all the time, but I go to bed later and sometimes we just can’t talk. So every now and then he’ll be like “sorry I can’t talk anymore” So I respond with “ok see you l8ter” and he will respond with Bye😊. And sometimes he just uses 😌 emoji. I know I’m the only one he messages this often as we r best friends on Snapchat. Do I have any chance and what do these emojis mean.
WHAT DOES 😌 MEAN AND WHAT DOES 😊 MEAN?
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