When a guy says you’re cool?

I’ve hung out with this guy a couple times and him and I are friends before anything else. His body language is positive and when I’m with him he’s always affectionate and comfortable around me. I don’t know how to interpret this because I overthink and I don’t want to get myself attached. As of right now he’s not dating anyone so I’m not sure if I should ask him am I someone that he’s going to mess with or pursue something with me?
When a guy says you’re cool?
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