Why does my crush always seek validation from me?

I have a decently close guy friend and I've recently begun to look at him through a romantic lens. In the past, he's called me pretty, cool, awesome, etc. I'm not a highly affectionate individual so I never reciprocated his sayings. Now that things are picking up and the pandemic is halting, we are hanging out a lot more. But I've noticed some strange comments on his behalf. He'll say things like "Oh so you think I'm cute" and "Wow you have a crush on me". These phrases are all said in a joking manner, yet I can't help but think there's a deeper meaning to them. He also talks about how hot other girls are after I mention my close guy friends. I'm really confused but I like him and I hope his strange behavior indicates that he feels the same.
Why does my crush always seek validation from me?
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