If a guy sends blushing smile emoji is he into me or just friendly?

I sent a text to this guy I’ve been friends with for a few years, I was commenting that I was glad were friends again and he sent back the blushing smile emoji. We were close and he showed signs of liking me when we met at college, he knows I like him as I told him but he denied feeling the same at the time…he moved to another state but now we are friends again and he’s replying very fast and seems happy to talk to me and always wants to know how I am. Into me or just friendly?

If a guy sends blushing smile emoji is he into me or just friendly?
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