Should I remind my crush that I like him, as my reason for not wanting to spend time helping him improve a skill, or use a different excuse?

I told my crush I like him a while ago. He didn't want to go out, so I started avoiding places where he went. But recently, we saw each other, and he realized we could help each other to become better at a particular hobby, acting as if everything is normal. Since he's acting like I never told him I liked him, I'd feel like I was coming off as looking too intense if I were to say, "Sorry, but I'm worried that I'll fall back in love with you if we helped each other like that". But I also don't want to look like I'm too self-centered to help him, by coming up with some lame excuse to get out of the interaction. What do I do?

Should I remind my crush that I like him, as my reason for not wanting to spend time helping him improve a skill, or use a different excuse?
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