Crush giving mixed signals

I need some support to know If he really likes me or he just plays with my feelings... And, If he is a green flag or a red flag...

So... He and I met. I have a crush on him. He's cute. He's sweet. He's funny. He's adorable. He's shy. He always smiles around me. He always find ways to talk to me. He approaches me. He asks me questions. He does the triangle method. We high-five our hands together all the time in a group project. We play paper toys together (Yeah... HE'S CUTE. We are grown up now.) He blushes whenever I talk to him and take the initiative to ask him questions like "What is your answer for this?", "What do you like?", "What is your idea?", "What do you know about this?"...

He approaches me by helping me select members for the Group Project.

And, I asked him to add me online group chat for the Group Project and he said... "Okie"

But... He does nothing.

I can't add the members because he didn't add me...

Maybe he just didn't want to do the tasks or maybe... He just didn't like me...

I also noticed that... He picks a seat for me (It's a bit close to him). And, then... When I try to get close to him... He backs off and sits in other chairs... Far away from me...

I also noticed that... Whenever I sit next to him... He sits in other chairs...

I don't know If he's just being shy or... He dislikes me secretly...

And, when I say goodbye to him... He ignored me...

Maybe he just didn't see me... Even though I'm in front of him...

Also... Whenever I wave hi to him he just nods...

He also asked me for lunch money...

I just didn't know If he likes me really or not.

Or maybe he likes me but he's just a Red Flag.