Is this a bad thing?

Is it a bad thing that I’m kinda getting obsessed with this guy I haven’t talk to in 3 years. I haven’t seen him since my birthday but I can’t stop thinking about him. Every thing reminds me of him. When I see him sometimes he will make it obvious that him was looking at me and sometimes he doesn’t. Years ago he made it obvious that he had a thing for me. Do you think he still wants to get to know me? I’m kinda of shy especially around me. I believe I’m putting out a I don’t like you or leave me alone vibe that’s why he always disappears for awhile. He has been doing that whenever I has something to do with me. I’ve been noticing his patterns recently. We have a mutual friend but I’m afraid to ask her how he’s doing 😥. please help me.
Is this a bad thing?
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