What should I do

Hey so I work with this guy and he's pretty cute, we get along great and he always nice to me and we do flirt a little. He tends to bring me food whenever I'm there(he's a cook at our restaurant) and all the cooks think we're dating because he's always bringing me food and giving me extra. But recently I asked for his insta and why does he have a bm and a whole highlight of her. I'm so lost and don't know what to do