Boy troubles

So I have been talking to a boy everyday for the past month. I met him through a friend and we've only hung out twice. He's a bit of a player but he's genuinely nice to me, he asked for nudes and I said no and he's never asked again and he still talks to me and calls me beautiful and tells me he really likes me, do you reckon he's just using me or he's genuinely into me. The friend I met him through the tells me that he told her that he is into me and she tells me he's nice and a good guy and all but I'm just scared that he'll use me and make me look stupid. Do I trust him or not? Also, side note my bestfriend does not like him, should I listen to her or not?