He called me bae?

We have been sexting with this guy for a long time on snapchat and today I sexted him again. He said "Im sick baby" and then I said "get well soon hun" he respond me "thanks bae". He didn't say this before. Im the one who usually starts sexting and we've met with him when I was abroad this summer. What does bae mean? Do you think he likes me?
He called me bae?
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