What does a guy mean when he says talk to you soon with a smiley face next to it?

ambs1876
I had a good time with a guy I knew in college. we hooked up and realized that we didn't want to do the random hook up so I suggest we be friends and maybe hang out platonic. he replied with deff:) talk to you soon. is he really going to talk to me soon or was this the end?
What does a guy mean when he says talk to you soon with a smiley face next to it?
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