Uh... Advice on weird event??

I (17F) and my crush (18M) are best friends of 2 years. We hang out every day.

He's said he doesn't want a relationship/is not ready for a relationship, yet he's done and is still doing things that make me believe he might have feelings anyways.

So today he did something odd; me, him, and 2 of our friends sat down to play cards that I brought. One of our friends sat next to me so I moved my phone away from them and closer to him, unintentionally. He suddenly took it, picked it up and looked down at it for a second before putting it to his ear and going, "Hello? Yes, this is her father; Stay away from my daughter!" And putting it back down. It was uncalled for, and I've no idea what the heck that was; is it friendzoning?

Any advice is appreciated.