Is my bi guy friend flirty or friendly to change my contact as “_first name_bear”?

But the thing is he knows about guys I talked to romantically lol. We are also classmates. Other than that we act like classmate besties and he always say I’m so funny and calls me bestie like other girls lol. Couple weeks ago he said he loves my energy and bubbliness. He said to never changed. Ngl
At that moment he felt masculine and he looked at me abit different, but he also knew I was flirty with another guy classmate and he keep saying I’m sucha flirty person… but I think I’m just very friendly lol.

So today he actually told me and another classmate he’s attracted to our other classmate though. I told him he shouldn’t call her bestie lol. He agreed cuz he said when he calls girls that then they think he might be more like a gay bestie even though he could be attracted to her. But he also said he acts different with us vs when he also is attracted to someone.
So I’m not sure
Is my bi guy friend flirty or friendly to change my contact as “_first name_bear”?
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