My male teacher sent me a winky face?

So I'm 18 and my male teacher is 40. He thought us sport. But he also helped me a lot with my anxiety. I graduated last week and I texted him to say thanks for everything he has done for me and he replied saying that it wasn't a problem and he sent a winky face. Was this creepy? (I had his number because I ring him if I'm upset and he calms me down) he's also a councillor so that's why he supported me!
My male teacher sent me a winky face?
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