Does he like me? or just business?

My trainer , at first was very shy and the his friend in front of me told him, that he thinks that shy guys lose a lot of opportunities. While they are just looking at the girl they like, and my trainer was looking at me a lot during all year. After that he started to approach me every day making the same question: “how are your training going?” he has made me already like 7 times in last 2 weeks the same question. BUT: I haven’t him in my facebook friends, but one girl he was flirting with in front of me one day, does. After that, he continued to approach me. Actually I don’t know how to understand his small talks: - Friendship - Professional - Love …?
Does he like me? or just business?
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