Do you think he likes me

Ok so basically I have a major crush on a guy I went to school with in high school. He’s 20 and I’m 18 I feel like he may actually like me to but I’m not sure if it’s just because I want him to. So he will find any excuse to talk to me anytime I post something on Snapchat he comments and starts up a conversation today I was going to the dentist and I was like I would rather my teeth rot then go to the dentist and he’s like you can’t do that it will ruin your perfect smile now that alone would make me think he likes me but then when the conversation gets dry he’ll leave me on read. So I have no idea please put in your opinions.