HELPPPPP???

he was like all over me yesterday and he went shopping and asked me what colour of hoodie should he get cause he likes it when iw ear his hoodies, we're not in a relationship but anyways, he was all sweet and stuff yesterday and now he's hellla dry for some reason? he asked how my sleep was but i can see his snapscores going up and hasnt snapped me back and its been 30minutes. what should i do? this is in grade 11 btw. Leave his ass or wait and see?